u/Ecstatic_Pineapple68

I keep seeing posts about sending peptides out for third party independent testing at a lab. I’m curious, are there pervasive quality issues, or something? Also, when people say things like, “just buy from a reputable vendor and you don’t have to worry”, how do you know they are reputable without some sort of testing. I hear that COAs are available but can’t they just be replicated to look authentic?