COAs, Testing, and Red Flags — What Should I Know Before Choosing a Vendor?
I’m not necessarily asking for supplier recommendations, but more trying to understand what I should actually be looking for when researching peptide vendors.
What are the biggest red flags and green flags when looking at suppliers? Especially when it comes to COAs/testing. Like what should immediately make me avoid a vendor, and what things usually indicate they’re more trustworthy?
Right now I’m mainly interested in picking up some Reta and GHK, so I’m trying to make sure I understand how to properly evaluate vendors before ordering anything.
Also, for someone newer to researching peptides, is it generally smarter to start with a domestic/US supplier first just to learn the process and test things out, then move into grey market options later? Or do most people just go straight to grey?
The amount of vendors and conflicting opinions on the GLP-1 forums is honestly overwhelming, so I’m trying to understand how experienced people actually evaluate suppliers instead of just blindly trusting reviews.