r/Biohack_Blueprint

Image 1 —
Image 2 —
Image 3 —
Image 4 —
Image 5 —
Image 6 —
▲ 622 r/Biohack_Blueprint+1 crossposts

I’ve been on Reta for just over 4 months now and I’m down from 237lbs to 183lbs.

Very little muscle loss (some strength gain) — I am on 150mg test.

Also take:

- GHK-Cu 3mg daily

- Mots-c 5mg 3x per week

- HGH 4iu per day

- Mt-2 (just started)

- BPC-157 + TB500 to help with an injury but stopped now I’ve recovered

Been on the same daily calories since day 1 (around 2,200) which is still approx 1,000kcal deficit at my current weight / activity level.

Going for single digit body fat - hoping I’ll be there within the next 2 months.

u/FarTooAddicted — 1 day ago
▲ 515 r/Biohack_Blueprint+5 crossposts

-145LBS using Retatrutide

This is a 8 month progression using the peptide (Retatrutide) or also known as GLP-3RT

Obviously peptides are a tool, not some magic pill you can take to loose weight. I was 6’4 350lbs ➡️ 205lbs 6’4
I was still tracking all calories/macro eating 2,100 calories a day 200g of protein.

u/tgnrangerig — 2 days ago
▲ 467 r/Biohack_Blueprint+1 crossposts

15lbs down 2mg weekly

helped me shred the last bit of stubborn weight. did 2 cycles in 6months 2 months on 2 months off 2 months on 2mg week
damn this is getting a lot of comments- for the record i never claimed i ONLY take Reta, but this is a Reta forum- so this is my Reta protocol.
hope it works well for u all as well

u/glitter_pony13 — 3 days ago
▲ 282 r/Biohack_Blueprint+1 crossposts

Down 9kg/20lb

These are my results from starting retatrutide 10 weeks ago! Went from 56kg to 47kg. For reference I’m 5’1 and I’m mixed race, so my bmi was just about overweight before and now its bang on in the middle of the healthy range :))

Didn’t do much exercise except for a bit of cardio here and there, eated a bit cleaner but still went out to eat here and there.

Overall, I’m pleased with my results, I think I’m gonna stack it with tesa and start lifting as soon to better body comp as soon as exam seasons over.

Also I’m 18 so I feel like I got better results with a minimal amount of exercise compared to someone who might be in their 30s using Reta. I don’t see much younger peoples results on here so thought this would help :)

P.S ignore my hair in second picture I just took it out of a slickback looool

u/ImmediateOne3384 — 3 days ago
▲ 195 r/Biohack_Blueprint+1 crossposts

Progress

2 month progress. Zero cheat days, perfect diet only whole foods, gym 5x a week, 12k-20k steps a day, 4mg a week, and a slight caffeine addiction.

u/gmbfdhhf — 4 days ago

How peptides actually cross the blood-brain barrier (and why some never do)

This is one of the most misunderstood concepts in our community

People will buy a cognitive peptide, take it orally because it is more convenient, then wonder why they feel nothing. Or they will try intranasal BPC-157 expecting gut healing results. Or they will inject a peptide subcutaneously expecting brain effects when the molecule physically cannot cross into the brain.

Understanding how peptides reach their target tissue is the difference between a protocol that works and one that wastes your money.

Here is what is actually happening:

The blood-brain barrier basics

Your brain has a security system. It is called the blood-brain barrier (BBB) and it is built from specialized cells called endothelial cells that line the capillaries in your brain. These cells are connected by tight junctions that prevent most molecules from passing through.

The BBB exists for good reason. Your brain is a delicate environment and it does not want random toxins, pathogens, or large molecules disrupting things.

But this creates a problem for peptide therapeutics. Most peptides are too large to cross the BBB through passive diffusion. They get to your bloodstream just fine after injection, but the BBB rejects them.

What can cross

Three main categories of molecules cross the BBB:

Small lipid-soluble molecules. These dissolve in the fatty membranes of the BBB cells and pass through. Examples include alcohol, caffeine, nicotine, and most psychoactive drugs.

Molecules with active transporters. Glucose, amino acids, and some specific peptides have dedicated transport proteins that shuttle them across.

Molecules small enough to slip through. Generally under 500 Daltons in size, with the right chemical properties.

Most therapeutic peptides do not fit any of these categories. They are too large (typically 1000-5000 Daltons), too water-soluble, and lack dedicated transporters.

Which peptides actually reach the brain

This is where it gets interesting.

Semax and Selank: Both are small enough and have specific properties that allow brain penetration. Semax is particularly notable because it was specifically designed in Russia to be a heptapeptide (only 7 amino acids) that crosses the BBB effectively. This is why intranasal Semax works - it has a direct route via the olfactory pathway and can also cross the BBB after systemic absorption.

Cerebrolysin: Mix of neuropeptides specifically designed for BBB crossing. Used clinically in many countries for stroke recovery and cognitive disorders.

Dihexa: Designed specifically to be orally bioavailable AND cross the BBB. One of the few cognitive peptides where oral dosing actually works for brain effects.

P-21: Modified to cross the BBB, used for cognitive enhancement research.

DSIP (Delta Sleep-Inducing Peptide): Yes, it crosses. The name tells you it must reach the brain to work.

Pinealon: Small enough to cross. Affects pineal gland function and REM sleep.

Which peptides do NOT effectively cross

BPC-157: Does not cross the BBB effectively. The systemic effects on the brain (which some people claim) are likely indirect, through reduced systemic inflammation and improved gut function (gut-brain axis). Injecting BPC for direct brain effects does not work the way most people think.

TB-500: Same situation. Systemic healing effects, but not direct brain effects through BBB penetration.

GHK-Cu: Does not cross BBB in meaningful amounts. The "GHK-Cu makes me feel better" effect is likely systemic (reduced inflammation, better skin and gut barrier, improved sleep through other mechanisms).

CJC-1295 and Ipamorelin: Do not need to cross the BBB. They work at the pituitary gland which is actually OUTSIDE the BBB (the median eminence area is one of the "leaky" parts of the brain by design, so hormones can affect pituitary function).

MOTS-C: Works at the cellular level in muscles and metabolic tissues. Some brain effects but primarily peripheral.

Delivery methods matter

This is where most people get it wrong.

Oral peptides: Gastric acid destroys most peptides before absorption. Even those that survive get broken down by digestive enzymes. Then if anything reaches the bloodstream, it still has to cross the BBB. This is why oral peptide capsules of most compounds are a waste of money. Exceptions exist (Dihexa, some bioregulators, 5-Amino-1MQ which is technically an organic molecule not a peptide), but they are rare.

Intranasal: Direct olfactory pathway can bypass the BBB for some compounds. This is why intranasal Semax and Selank work so well - they go directly from nose to brain through the cribriform plate. The downside is intranasal delivery has variable absorption and is not appropriate for compounds that need systemic distribution.

Subcutaneous injection: Slow systemic absorption, good for most peptides. The compound reaches the bloodstream and then has to cross relevant barriers to reach target tissue.

Intramuscular injection: Similar to subQ but slower absorption. Sometimes used for larger volume injections.

IV injection: Fastest systemic delivery, but most peptides do not require IV for effectiveness. Reserved for specific clinical applications.

What this means practically

If you want brain effects, you need a peptide that actually crosses the BBB or use a delivery method (like intranasal) that bypasses it. Semax intranasal for focus. Selank intranasal for anxiety. Dihexa oral for cognitive enhancement.

If you want systemic effects, you do not necessarily need BBB crossing. BPC-157 subQ works perfectly for gut and tissue healing because that is where the compound acts.

If you want gut-specific effects, local delivery near the gut (abdominal subQ injection) or oral delivery for compounds that survive digestion (KPV has some oral applications) is the right approach.

The wrong delivery method is the most common reason peptide protocols fail. Get this right.

Discussion

  • did you assume peptides automatically reach the brain?
  • have you tried intranasal vs injectable for the same compound and noticed a difference?
  • what delivery methods have worked best for you with cognitive peptides?
  • did you waste money on oral peptide capsules before learning this?

The pharmacology matters. Understanding how the compound reaches the tissue is what separates an effective protocol from a hopeful one.

Disclaimer: This content is for educational and informational purposes only and is not medical advice. Peptides discussed are research compounds and may not be approved for human use. Nothing here should be used to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting any peptide, supplement, or protocol. Individual responses vary. Do not self-administer compounds without proper medical supervision.

reddit.com
u/Soft_Orange_3670 — 2 days ago

Thymosin Alpha-1 Complete Guide: The Immune Peptide That's Approved in 30+ Countries

This is one of the most underrated peptides in our entire community

Everyone obsesses over healing peptides like BPC-157 and TB-500. Everyone talks about GH peptides like CJC + Ipa. Everyone is now talking about GLP-1s for body composition.

Almost nobody talks about Thymosin Alpha-1. Which is a problem because this is one of the most clinically validated peptides on the planet.

Thymosin Alpha-1 (Ta1) is approved in over 30 countries including most of Europe and parts of Asia. It is currently used clinically for chronic hepatitis B, hepatitis C, certain cancers, severe sepsis, and immune dysfunction. The clinical trial database on this compound is massive.

So why is it not approved in the US? Long story involving FDA bureaucracy and pharmaceutical company priorities. The short version is that Thymosin Alpha-1 has been on the FDA's restricted compounding list, but it was just removed from Category 2 in April 2026, putting it on the path to potential compounding pharmacy access.

This guide breaks down what it does, who should run it, how to dose it, and why this might be the most important peptide you are not running.

What is Thymosin Alpha-1?

Thymosin Alpha-1 is a naturally occurring 28-amino acid peptide produced primarily by your thymus gland. The thymus is the organ behind your sternum that trains your T-cells to function properly.

Here is the problem: your thymus starts shrinking after puberty. By age 40, it has lost most of its function. By age 60, it is essentially nonfunctional. This is called thymic involution and it is one of the primary reasons immune function declines with age.

Less thymus function means fewer naive T-cells, less precise immune responses, and reduced ability to fight off infections, recognize cancer cells, or modulate autoimmune flares.

Thymosin Alpha-1 supplements what your thymus is no longer producing.

What it actually does

Thymosin Alpha-1 modulates immune function in multiple ways:

T-cell maturation and function. Ta1 helps immature T-cells in the thymus mature into properly functioning helper T-cells and cytotoxic T-cells. More effective T-cells means better infection response and better cancer surveillance.

Dendritic cell activation. Ta1 enhances the activity of dendritic cells, which are the immune system's intelligence gatherers. They identify pathogens and tumor cells, then activate the rest of the immune response.

Cytokine balance. Ta1 helps shift immune responses toward Th1 (cellular immunity, good for fighting viruses and cancer) when appropriate, and toward immune tolerance when that is what is needed.

Natural killer cell enhancement. NK cells are your first line of defense against viruses and tumor cells. Ta1 increases their activity.

The result is an immune system that responds appropriately to threats without overreacting (which causes autoimmunity) or underreacting (which lets infections and cancers progress).

Who should consider running this

Frequent illness: If you catch every cold that goes around, get sick after stressful periods, or have a long history of recurrent infections.

Chronic inflammation markers: If your bloodwork shows elevated CRP, fibrinogen, or homocysteine without a clear cause.

Post-illness recovery: After COVID, mono, flu, or any significant illness that has not fully resolved. Long COVID protocols often include Thymosin Alpha-1.

Autoimmune conditions: Ta1's immune modulation can be helpful for conditions like Hashimoto's, lupus, or other autoimmune issues. This is also an area where you absolutely need medical supervision.

Age over 40: Thymic involution is significant by this point. Supporting immune function becomes preventive medicine, not just treatment.

Cancer history: Ta1 has clinical applications in oncology including melanoma, hepatocellular carcinoma, and as an adjunct to chemotherapy. Always with oncologist guidance.

Travel: People who travel frequently and want immune support before exposure to new pathogen environments.

What to expect

Thymosin Alpha-1 is not a peptide you feel.

Most peptides give you some kind of subjective signal. CJC + Ipa improves sleep noticeably. BPC reduces pain at injury sites. Semax produces sharper focus. Ta1 does not work that way.

You measure Ta1 results by what does not happen. Fewer colds. Faster recovery from minor illnesses. Lower inflammatory markers on bloodwork. Less time feeling generally run down.

Timeline:

Week 1 to 4: Likely no subjective changes. The immune effects are building in the background.

Week 4 to 8: Subtle changes. You might notice colds that used to knock you out for a week now resolve in 2-3 days.

Week 8 to 12: Bloodwork changes become visible. CRP and other inflammatory markers often drop. T-cell counts can improve.

Long-term: This is a peptide you cycle through periods of higher and lower risk (winter, travel, post-illness recovery) rather than running indefinitely.

Dosing protocols

Standard protocols vary based on use case:

General immune support (healthy adults over 40):

  • 1.6mg subcutaneous, twice weekly
  • Run for 8-12 week cycles
  • Cycle off 4-8 weeks between protocols

Active illness or post-illness recovery:

  • 1.6mg daily for 7-14 days
  • Then taper to twice weekly for 8 weeks

Chronic inflammation or autoimmune support:

  • 1.6mg twice weekly ongoing
  • With medical supervision
  • Adjust based on bloodwork

Cancer adjunct (oncologist directed only):

  • Higher doses, typically 3.2-6.4mg
  • Often combined with other immune therapies
  • Never self-directed

The half-life is short (about 2 hours), but the immune effects last days because of how the peptide modulates downstream immune cell function.

Common mistakes

Mistake 1: Expecting to feel something

This is not a peptide that produces subjective effects. If you wait until you feel different, you will quit thinking it does not work. Trust the mechanism and the bloodwork.

Mistake 2: Running it indefinitely

Ta1 is a tool for immune support during specific periods. Cycle it. Use it before flu season, during high travel periods, post-illness, or during chronic inflammation flares. Continuous year-round use is not the typical protocol.

Mistake 3: Skipping bloodwork

The whole point of an immune peptide is measurable immune improvement. Get your CBC with differential, CRP, and inflammatory markers before and during. Without data you have no way to evaluate this protocol.

Mistake 4: Running it during acute autoimmune flares without supervision

Ta1 modulates immune function. During an active autoimmune flare, you want experienced medical guidance to make sure you are not inadvertently pushing the response in the wrong direction.

Mistake 5: Underdosing

The 1.6mg dose is the standard for a reason. Some people try to stretch their supply by dosing 0.8mg or less. Below the therapeutic dose, you get suboptimal results.

What to track

Bloodwork before you start:

  • Complete Blood Count with differential (especially lymphocyte counts)
  • CRP (C-reactive protein)
  • ESR (erythrocyte sedimentation rate)
  • Vitamin D (immune cofactor, almost everyone is deficient)
  • HbA1c (chronic high blood sugar suppresses immune function)

Bloodwork at week 8 or 12:

  • Same panel
  • Look for improvements in lymphocyte counts and reductions in CRP/ESR

Subjective tracking:

  • Number of illness days per month
  • Energy levels 1-10 weekly
  • Recovery time from minor infections
  • General sense of wellness

Long-term tracking:

  • How often you get sick in a year compared to before
  • Severity of illnesses when they do occur

Side effects

Thymosin Alpha-1 is one of the cleanest peptides available. Side effects are rare and generally mild:

  • Mild injection site reactions
  • Occasional fatigue in the first 1-2 weeks (immune system recalibrating)
  • Rare allergic reactions

Serious side effects are very uncommon but contact a qualified healthcare professional if you experience:

  • Significant fatigue lasting more than 2 weeks
  • New autoimmune symptoms
  • Severe allergic reactions

Who should not run this

  • Active organ transplant recipients (immune modulation could affect rejection)
  • Severe active autoimmune disease without medical supervision
  • Pregnancy
  • Anyone with a known allergy to Ta1 or related peptides

Note: GH peptides can promote cancer cell growth in active cancer patients. Ta1 is different - it can have applications in cancer treatment but always under oncologist supervision. Never self-direct cancer-related protocols.

The bigger picture

Thymosin Alpha-1 sits in the immune pillar of a complete stack. Healing pillar is BPC + TB-500 + GHK-Cu. GH pillar is CJC + Ipa or Tesa + Ipa. Cellular pillar is MOTS-C. Brain pillar is Semax + Selank.

The immune pillar is the one most people skip entirely. Then they wonder why they keep getting sick, why their inflammation markers stay elevated, why they cannot seem to recover from things like long COVID or chronic infections.

You cannot optimize healing, cognition, or body composition if your immune system is constantly fighting fires in the background. Ta1 is the foundation for actually addressing this.

If you are over 40, if you get sick frequently, if your inflammation markers are elevated, or if you are recovering from something significant - this peptide deserves your attention.

Discussion

  • has anyone been running Thymosin Alpha-1?
  • did you notice fewer illnesses or shorter recovery times?
  • what did your bloodwork show before and after?
  • are you cycling it or running it continuously?
  • what other immune-supporting protocols do you pair it with?

The immune pillar is the most underrated category in this community. That changes when we start talking about it more.

Disclaimer: This content is for educational and informational purposes only and is not medical advice. Peptides discussed are research compounds and may not be approved for human use. Nothing here should be used to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting any peptide, supplement, or protocol. Individual responses vary. Do not self-administer compounds without proper medical supervision.

reddit.com
u/Soft_Orange_3670 — 3 days ago
▲ 26 r/Biohack_Blueprint+1 crossposts

My 2 month progression.

For some backstory I will let everyone know that I have experience losing weight and being dialed in. My weight gain was caused from a binge eating disorder I gained after I had finished wrestling season. The constant weight cuts and restrictions made me obsessed with food. I gained serious weight very fast of straight fat and became basically depressed. I decided enough was enough and started my aggressive cut. ZERO cheat meals or cheat days. Tracked every calorie I consumed, gym 5x per week, dialed in diet only Whole Foods, started with Reta at 1mg and worked up to 4mg, 12k-20k steps everyday, abused energy drinks and zero calorie soda LOL.

SW- 198lbs
CW- 170lbs
Height- 5’11
Age- 18yo
Calories per day- 1800-2000

u/gmbfdhhf — 3 days ago

GH Peptides Head-to-Head: ranking every option from S-tier to skip

This community asks about GH peptides more than almost any other category

Everyone wants to optimize growth hormone. But the market is flooded with options, the marketing is loud, and most people end up running the wrong compound for the wrong reason.

Here is the head-to-head breakdown of every major GH peptide on the market, ranked by mechanism, side effect profile, and long-term endocrine impact.

S TIER - the foundation

CJC-1295 + Ipamorelin - The conductor and percussion stack. Synergistic GH release that follows your natural pulse pattern. No pituitary suppression. Clean side effect profile. This is the gold standard for GH optimization in 2026.

A TIER - excellent

Tesamorelin - FDA approved for visceral fat reduction. Strong clinical backing. GHRH analog that preserves natural pulse pattern. Underused compound that deserves more attention.

Ipamorelin (solo) - Clean ghrelin agonist without the cortisol or prolactin baggage of older GHRPs. Works alone but pairs better with CJC.

B TIER - good for specific goals

CJC-1295 with DAC - The 6-8 day half-life sounds convenient but the constant GH elevation flatlines your natural pulse pattern. Most practitioners avoid this version.

C TIER - situational use only

Sermorelin - Half-life is too short (10 minutes) to produce meaningful results compared to CJC. Generally redundant if you have access to better options.

GHRP-2 and GHRP-6 - The older ghrelin agonists. They work, but they elevate cortisol and prolactin. GHRP-6 also causes severe hunger. Ipamorelin replaced both for good reason.

Hexarelin - Most potent ghrelin agonist available, but receptor downregulation happens fast. Tachyphylaxis means you need higher doses over time to get the same effect. Not sustainable.

D TIER - skip these

MK-677 (Ibutamoren) - Oral ghrelin mimetic with a 24-hour half-life. The constant GH elevation suppresses your natural pituitary function partially. Plus brutal hunger, water retention, and insulin resistance. Most people cannot handle long-term use.

Synthetic HGH - The original heavy hitter. Direct GH replacement floods your system with constant hormone, completely suppressing your pituitary's natural production. Long-term users end up with destroyed natural GH output. Costs 5-10x more than a peptide stack and gives you less long-term function.

The pattern that emerges from this list:

The S and A tier compounds preserve your natural pulse pattern. The D tier compounds destroy it.

That is the entire framework you need to evaluate any new GH compound that hits the market. If it flatlines your release pattern, it will suppress your pituitary long term. If it amplifies the natural rhythm, it works with your biology instead of against it.

CJC + Ipa is the foundation. Tesamorelin is the specialist for visceral fat. Everything else is optional or avoid.

For dosing protocols, cycling, and stacking strategies, the cheat sheet pinned in this community covers each compound in detail.

  • where do you disagree with this ranking?
  • what is your current GH protocol?
  • has anyone moved from synthetic HGH back to peptides? what changed?
  • which compound from the C tier do you think deserves to move up?

The GH category is the most marketed and most misunderstood part of the peptide space. Get this one right and the rest of your stack works better.

Disclaimer: This content is for educational and informational purposes only and is not medical advice. Peptides discussed are research compounds and may not be approved for human use. Nothing here should be used to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting any peptide, supplement, or protocol. Individual responses vary. Do not self-administer compounds without proper medical supervision.

reddit.com
u/Soft_Orange_3670 — 4 days ago

Tesamorelin + Ipamorelin Complete Guide: The FDA-Approved Stack for Visceral Fat and Lean Body Composition

Shoutout to u/scubaswanny3 for the request on this one

If you have been running CJC + Ipa and want to know what the next step up looks like, or if your goal is specifically targeting stubborn visceral fat around the midsection, Tesamorelin + Ipamorelin is the protocol you should be looking at.

This is one of the most clinically backed GH peptide stacks in the entire space. Tesamorelin is actually FDA approved (sold as Egrifta) for HIV-associated lipodystrophy, which means it has gone through the full phase 3 clinical trial process most peptides never see. Pair it with Ipamorelin and you get a powerful combination targeting both visceral fat reduction and clean GH amplification.

This guide breaks down what each compound does, why they work better together, how to dose them, and what to actually expect.

What is Tesamorelin?

Tesamorelin is a synthetic analog of growth hormone releasing hormone. It works on the same GHRH receptors as CJC-1295, but with a key difference - Tesamorelin has been specifically studied and FDA approved for visceral adipose tissue reduction.

The mechanism is straightforward. Tesamorelin tells your pituitary to release growth hormone in natural pulses. The elevated GH levels then mobilize stored fat, particularly visceral fat (the deep abdominal fat that wraps around your organs), and convert it into usable energy.

Why visceral fat matters more than subcutaneous fat:

Visceral fat is metabolically active in ways that subcutaneous fat is not. It releases inflammatory cytokines, drives insulin resistance, and is directly linked to cardiovascular disease and type 2 diabetes. Reducing it is not just an aesthetic improvement, it is a serious health intervention.

The clinical trials on Tesamorelin showed visceral fat reductions of 15-20% over 26 weeks of treatment. Those are pharmaceutical-grade results.

What is Ipamorelin?

Ipamorelin is a growth hormone secretagogue that works on the ghrelin receptor pathway. It mimics ghrelin, your hunger hormone, to trigger GH release through a completely separate mechanism than Tesamorelin.

What makes Ipamorelin special is what it does not do:

  • No cortisol increase (unlike GHRP-6 and GHRP-2)
  • No prolactin elevation
  • No major hunger spike (unlike MK-677)
  • No water retention
  • Clean GH pulse without the side effect baggage

This is why Ipamorelin replaced the older GHRP series in serious protocols.

Why Tesamorelin + Ipamorelin works together

Same logic as CJC + Ipa but with different strengths.

Tesamorelin works on GHRH receptors. Ipamorelin works on ghrelin receptors. Two different pathways triggering GH release means a bigger, cleaner pulse than either compound alone.

But here is what makes Tesa + Ipa different from CJC + Ipa:

CJC + Ipa is the general optimization stack. Good for sleep, recovery, body composition, lean mass preservation.

Tesa + Ipa is the body composition specialist stack. Specifically targets visceral fat with clinical-grade results, while still providing the systemic GH benefits you get from any properly designed protocol.

If your goal is general optimization, CJC + Ipa is fine. If your goal is fat loss specifically around the midsection, or you have metabolic syndrome concerns, Tesa + Ipa is the better protocol.

What to expect

This stack takes longer to show results than CJC + Ipa because Tesamorelin's visceral fat reduction is a slower physiological process than the sleep architecture changes you notice fast with CJC.

Week 1 to 3: Subtle changes. Better sleep quality. Slightly improved recovery. Most users feel nothing dramatic during this window.

Week 4 to 8: Body composition shifts become visible. Waist measurements start dropping. Energy and recovery are noticeably better. This is when the stack earns its reputation.

Week 9 to 16: Peak visceral fat reduction. Clinical trials showed the steepest drops in this window. Lean mass preservation becomes obvious if you are training consistently.

Week 17 to 26: Plateau and consolidation. Visceral fat continues dropping but at a slower rate. This is when you decide whether to extend the protocol or cycle off.

Patience is the protocol. Most people quit at week 4 because they have not seen the dramatic visceral fat changes yet. Week 8 is when you actually know if it is working.

Dosing protocol

The practitioner standard for Tesa + Ipa:

Tesamorelin dose: 1-2mg subcutaneous, once daily Ipamorelin dose: 200-300mcg subcutaneous, once daily Timing: Both compounds together, either pre-bed (most common) or upon waking on an empty stomach Route: Subcutaneous, abdomen or thigh Cycle: 16-26 weeks on, 4-8 weeks off

The pre-bed protocol catches the natural GH pulse during deep sleep. The morning protocol works for people who cannot dose at night for logistical reasons. Pick one and stay consistent.

Empty stomach matters. Insulin from food blunts GH response by up to 50%. At least 2 hours fasted before injection.

Some practitioners run Tesamorelin solo (without Ipa) for visceral fat work. That is fine, but the Ipa addition amplifies the GH pulse without significant added cost or complexity. Most protocols include both.

Where to source it

If you want to run this stack, here are the options I trust:

The Tesamorelin + Ipamorelin pre-blended product from ResearchChemHQ is the easiest route. Both compounds in one vial, one injection per day, simpler dosing math.

If you want to run them separately for more flexibility, Tesamorelin solo and Ipamorelin solo are both available from solid vendors.

Common mistakes

Mistake 1: Quitting before week 8

Tesamorelin's visceral fat reduction is a slow physiological process. The early weeks show subtle changes. The real body composition shift happens between weeks 8 and 16. If you quit early, you missed the entire point of running this protocol.

Mistake 2: Injecting after meals

Insulin from food blunts the GH response. Always inject on an empty stomach, ideally 2+ hours after your last meal.

Mistake 3: Not measuring

If you are running this for visceral fat specifically, you need to measure progress. Waist circumference at the navel weekly. DEXA scans before and at the 16-week mark if you have access. Without measurements you cannot evaluate the protocol.

Mistake 4: Stacking too many GH compounds

Some people try to run CJC + Ipa AND Tesa + Ipa together. That is redundant. Both stacks hit the GHRH receptors. Pick one.

Mistake 5: Skipping bloodwork

Tesamorelin can affect glucose tolerance and IGF-1 levels significantly. Bloodwork before and during is non-negotiable for this protocol.

What to track

Bloodwork before you start:

  • IGF-1 (baseline)
  • Fasting glucose
  • HbA1c
  • Lipid panel (Tesamorelin can improve triglycerides specifically)
  • Liver enzymes

Bloodwork at week 12:

  • IGF-1 (expect a meaningful rise)
  • Fasting glucose (watch for any drift upward)
  • HbA1c (should not change significantly)
  • Lipid panel (expect triglyceride improvement)

Physical measurements:

  • Waist circumference at the navel (weekly)
  • Body weight (weekly, same time of day)
  • Body fat percentage if accessible (DEXA is gold standard)
  • Progress photos every 2 weeks

Subjective tracking:

  • Sleep quality 1-10 daily
  • Morning energy 1-10
  • Recovery between training sessions

Side effects to watch for

Tesamorelin + Ipa is generally well tolerated but real side effects can happen:

  • Mild water retention in the first 2 weeks (resolves)
  • Tingling in extremities (carpal tunnel symptoms in heavy users)
  • Joint stiffness (usually resolves with cycling)
  • Injection site reactions
  • Mild blood sugar elevation

Contact a qualified healthcare professional if you experience:

  • Persistent joint pain
  • Significant blood sugar changes
  • Vision changes
  • Severe water retention
  • Headaches that do not resolve

Who should not run this

  • Active cancer or recent cancer history (GH peptides promote cellular growth)
  • Pregnancy or breastfeeding
  • Active retinopathy
  • Severe insulin resistance without medical supervision
  • Acute critical illness
  • Anyone under 25 with a still-developing endocrine system
  • Pituitary tumors or recent pituitary surgery

The bigger picture

Tesamorelin + Ipamorelin sits in the GH pillar of a complete stack, but with a specific specialization toward visceral fat reduction. Healing pillar is BPC + TB-500 + GHK-Cu. Cellular pillar is MOTS-C. Brain pillar is Semax + Selank. Metabolic pillar overlaps here since Tesa is hitting metabolic markers too.

If your goal is general GH optimization, CJC + Ipa is your foundation.

If your goal is visceral fat reduction with clinical-grade backing, Tesa + Ipa is the better tool.

Both protocols work. The right one depends on what you are trying to accomplish.

Discussion

  • have you run Tesa + Ipa before?
  • did you make it past the 8 week mark or quit early?
  • pre-blended or mixing solo, which works better for you?
  • did you get DEXA scans before and after?
  • visceral fat changes - did the measurements actually move?

The data is what separates optimization from gambling. Get the bloodwork. Take the measurements. Trust the timeline.

Disclaimer: This content is for educational and informational purposes only and is not medical advice. Peptides discussed are research compounds and may not be approved for human use. Nothing here should be used to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting any peptide, supplement, or protocol. Individual responses vary. Do not self-administer compounds without proper medical supervision.

reddit.com
u/Soft_Orange_3670 — 8 days ago

A neuroscientist went on the Sean Ryan Show and claimed BPC-157 causes cancer. Here is what actually happened.

This is going to be a long one but it needs to be said

Louisa Nicola, an Australian neuroscientist, appeared on the Sean Ryan Show recently to discuss Alzheimer's disease. The interview was over 3 hours and covered some legitimate science around brain health, vaccines, exercise, and statins.

But about two hours in, the conversation turned to peptides. And the claims she made were so wildly wrong that a board-certified urologist with peptide expertise had to put out a 20-minute response video correcting her point by point.

Here is what she actually said and what the data actually shows.

Claim 1: BPC-157 causes cancer because it promotes blood vessel growth

Her argument: BPC-157 induces vascularization which helps with healing, but the body cannot tell the difference between healing tissue and a tumor cell. So if you have any undetected cancer, BPC-157 will fuel it.

This is the kind of statement that sounds scary until you understand basic tumor biology.

There are two types of angiogenesis. Physiologic angiogenesis is what your body does when you cut yourself or run a marathon. It is tightly regulated and self-limiting. Pathologic tumor angiogenesis is chaotic, disregulated, leaky vasculature driven by tumor-secreted growth factors that hijack the system.

These are not the same process. By her logic, you should ban exercise (massive driver of angiogenesis, she literally says exercise prevents 13 cancers earlier in the same podcast). You should ban hyperbaric oxygen, GLP-1s like Ozempic, hormone replacement therapy, and even Cialis. All of them promote blood vessel growth.

She does not call for banning any of those. The angiogenesis argument is selectively applied to peptides she has not bothered to read about.

Published animal models actually show BPC-157 has anti-tumor properties in colitis-associated cancer models. Not pro-tumor. The mechanism she is describing is more complex than her summary suggests.

Claim 2: Not one human randomized control trial has ever been done on peptides

This is demonstrably false at the most basic level.

Insulin (a peptide) was isolated in 1921 and has been studied in countless RCTs including the DCCT trial with 1,441 patients over 9 years.

Semaglutide (a peptide, marketed as Ozempic and Wegovy) was studied in the SUSTAIN trials with 3,297 patients and the SELECT trial with 17,604 patients.

Tirzepatide (a peptide, marketed as Mounjaro) was studied in the SURPASS and SURMOUNT trials with tens of thousands of patients.

Octreotide, Leuprolide, Teriparatide, Setmelanotide, Bremelanotide, Plecanatide, Linaclotide - every single one of these peptides has phase 3 RCT data backing it.

She later tried to walk this back by carving out an exception for GLP-1s, but even that does not save the original claim.

Claim 3: The FDA shut down BPC-157 trials because it was too dangerous

This is just made up.

There have been two human BPC-157 trials. One run by Clintec in the early 2000s, which died because of corporate acquisitions, not safety. Another by Pharmacotherapia in 2015 in Tijuana, which submitted results then pulled the submission.

Neither trial was on US soil. Neither had an FDA IND filing. The FDA had zero role in stopping any of these trials.

And here is the kicker - on April 22nd 2026, the FDA officially removed BPC-157 from Category 2 (the safety concern compounding restriction list). The FDA's stated reason: the nominations were withdrawn by the nominators. Translation: the people who put it on the bad list took their nomination back because the safety case could not be supported.

While Louisa Nicola is on the Sean Ryan Show claiming the FDA shut down BPC-157 for being lethal, the FDA is publicly doing the exact opposite.

Claim 4: Andrew Huberman corrected her, then she "recorrected" him

She mentioned that Andrew Huberman (Stanford neuroscientist, runs one of the largest health podcasts) reached out to her after a previous interview to correct her. She claims she recorrected him and that the original disagreement was about Melanotan-2 in a phase 2 trial death.

Dr. Alex (board-certified urologist) went and read the entire transcript of her original Diary of a CEO interview. The word melanotan does not appear. The word BPC-157 does not appear. The phrase phase 2 trial does not appear.

What she was actually discussing in that segment were anti-amyloid IV drugs for Alzheimer's. Drugs like Lecanemab and Aducanumab. These are monoclonal antibodies, not peptides. Different drug class. Different regulatory pathway. Different mechanism entirely.

The deaths she was discussing were from micro-hemorrhages on amyloid antibody trials, not from peptides.

She invented a cover story to explain the original error. And the cover story itself is also wrong.

Why this matters

Sean Ryan's audience is enormous. When somebody walks onto that stage and says BPC-157 causes cancer, that the FDA shut down trials for safety, that no peptide has ever been tested, people listen. They make decisions. Some of them serve in FDA leadership.

This is exactly the kind of handwavy fearmongering that got growth hormone yanked off the shelves for longevity use back in 1990. The same playbook. The same scare tactics. The same lack of supporting data.

Three decades later we have the data on HGH. The cancer signal never materialized. Millions of patients were denied life-changing benefits because of fear, not science.

The peptide reclassification process is happening right now. The PCAC advisory panel meets July 23-24, 2026. The window of bad information being amplified to millions of viewers right before this decision matters.

Sources

  • Sean Ryan Show with Louisa Nicola, peptide segment around 2:11:00 (YouTube Video Here)
  • Dr. Alex (board-certified urologist) response video breaking down each claim. https://youtu.be/oGVf79whnfo?si=Q28qjEp5xdzKI5fx
  • FDA Category 2 removal announcement, April 22, 2026
  • Published BPC-157 animal studies on colitis-associated cancer models

Discussion

  • did you watch the Sean Ryan episode?
  • have you encountered other influencers making similar wild claims?
  • does this kind of fearmongering affect how you talk to family about peptides?
  • what is the worst peptide misinformation you have seen recently?

The community gets smarter when bad science gets called out. That is what we do here.

Disclaimer: This content is for educational and informational purposes only and is not medical advice. Peptides discussed are research compounds and may not be approved for human use. Nothing here should be used to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting any peptide, supplement, or protocol. Individual responses vary. Do not self-administer compounds without proper medical supervision.

u/Soft_Orange_3670 — 8 days ago

Real talk: anyone else feel absolutely nothing on MOTS-C?

Anyone else feel absolutely nothing on MOTS-C?

This is going to be controversial but I have to ask

Everyone in the longevity space talks about MOTS-C like it's some kind of mitochondrial miracle. The forums are full of people claiming dramatic energy improvements, better workouts, sharper cognition.

I run it twice a week. Wednesdays and Saturdays. Been doing it for months.

And honestly? The effects are subtle. Real subtle.

I notice better endurance in long training sessions. Smoother energy without caffeine spikes. Decent temperature regulation. But it is nowhere near the dramatic life-changing experience some people describe online.

Here is what I think is happening:

People expect MOTS-C to feel like a stimulant. It does not. It works at the cellular level on mitochondrial function. That is not something you feel as a buzz. It is something that compounds over time in ways that are easy to dismiss day to day.

But I am curious if I am wrong about this.

  • did you feel something dramatic on MOTS-C or was it subtle like me?
  • did you cycle on and off and notice the difference when you stopped?
  • are people overhyping this compound or am I missing the protocol?
  • what dose and frequency are you running?

Disclaimer: Educational and research purposes only. Not medical advice. Consult a qualified professional.

reddit.com
u/Soft_Orange_3670 — 10 days ago
▲ 3 r/Biohack_Blueprint+1 crossposts

Quick question about SS31 "Loading phase"

My mitochondria have been destroyed for many years, so I'm starting strong with SS31 and doing the 10mg a day for one week "Loading phase".

I did 6mg today with zero side effects, so good tolerance.

Question: do you think it's best to take 10mg straight in the morning, or perhaps split it 5mg in the morning then 5mg later as perhaps this would be a more consistent distribution ? (Also, I'd have to buy 1ml syringes as I only have 0.5ml currently)

reddit.com
u/MindfulInquirer — 13 days ago

If you're not getting bloodwork twice a year, you're not optimizing. You're guessing.

This is going to make people uncomfortable but it needs to be said

I see posts in this community every week from people running 4 and 5 compound stacks who have never gotten a single blood test

That is not optimization. That is gambling with your endocrine system.

The actual reality:

Peptides change your physiology. CJC and Ipa raise IGF-1. Reta affects glucose and lipid metabolism. BPC influences inflammatory markers. GHK-Cu shifts copper levels. Every compound you inject is moving numbers somewhere in your blood.

If you are not measuring those numbers, you have no idea what is happening inside your body. You are using how you feel as your only data point. That is not enough.

What you should be tracking minimum:

Complete metabolic panel (kidney, liver, electrolytes) Lipid panel (cholesterol fractions) Hormone panel (testosterone, estradiol, SHBG) IGF-1 (especially if running GH peptides) HbA1c and fasting glucose Inflammatory markers (CRP, homocysteine) Thyroid (TSH, free T3, free T4) Vitamin D, B12, ferritin Complete blood count

Twice a year minimum. Once a quarter if you are running aggressive stacks.

The objections I hear constantly:

"Bloodwork is too expensive"

Anabolic Insights runs comprehensive panels for less than what most people spend on a single peptide vial. The math is not the problem. The avoidance is.

"My doctor will not order it"

Direct to consumer labs do not need a doctor's order. You order it yourself, get the draw at a Quest or LabCorp location, results come back in 3 to 5 days. No gatekeeping required.

"I feel fine, why bother"

Subclinical issues do not feel like anything. Elevated estradiol on a GH stack feels normal until it is suddenly not. Slowly rising blood sugar on a metabolic stack does not have symptoms until you are pre-diabetic. The whole point of bloodwork is catching things before they feel like something.

"I do not understand the numbers anyway"

Then learn. Or work with someone who does. Running peptides without understanding your bloodwork is like running a race blindfolded. You might be moving but you have no idea where you are going.

The honest math:

You are spending hundreds of dollars a month on compounds. Get the data that tells you whether they are actually working. The optimization community without bloodwork is just the supplement community with needles.

  • when was your last full panel?
  • what changed for you when you started tracking?
  • are you running a stack right now without recent bloodwork?

If you are serious about this, get serious about the data. That is the difference.

Disclaimer: Educational and research purposes only. Not medical advice. Consult a qualified professional.

u/Soft_Orange_3670 — 12 days ago

Blood work

It's so important to know your values before and during this journey. I wanted to share that I finally found an affordable place to get my labs done, checking so many more values than my doc does through Good Labs. I scheduled a blood draw and Quest and had my results back in less than a week so relived I finally have options for finding out my own values and not having to ask doctors to run things. Just wanted to share my experience since it's so important to know where you stand when taking peptides! If you want you can use my code to get 20% off I don't know if I'm allowed to share it on here but DM me if you want and I'll happily share it. I didn't have a code when I signed up and wish I did. Happy Pinning all!

reddit.com
u/CommercialAffect3287 — 14 days ago