Cystine-free/CysGly-supplemented = 9, from 4 independent experiments
The most commonly cited red flags include: COAs from the vendor's own internal lab only, no mass spectrometry confirmation, vague or missing batch numbers, aggressive health claims on product pages, no published returns or contamination policy, and suspiciously low pricing that cannot support quality synthesis and independent testing costs
Multi Dose Vial Plastic Unit
Examples include: Sermorelin FDA-approved for diagnostic testing of growth hormone secretion (commonly used off-label for growth hormone optimization) Tesamorelin FDA-approved for reduction of excess abdominal fat in HIV-associated lipodystrophy Semaglutide (Ozempic, Wegovy) FDA-approved for type 2 diabetes and weight management Thymosin Alpha-1 FDA-approved in some countries, available via compounding in the US Category 2: Compoundable Peptides (Under FDA Discretion) These are peptides that are not FDA-approved drugs but can be compounded by licensed 503A or 503B pharmacies under specific circumstances, typically when theres a medical need and no FDA-approved alternative exists
(4) Prasad S, Tyagi AK, Aggarwal BB
