Use caution if you have a history of pancreatitis, severe gastrointestinal disease (including gastroparesis), or significant kidney problems, as dehydration from vomiting or diarrhea can worsen kidney function
To view a copy of this licence, visit About this article Cite this article Arbex, P., Lephart, E.D
10.1038/s41583-019-0132-6 41 CamandolaS.MattsonM
Garrido-Martin P, Nassar-Mansur MI, de la Llana-Ducros R, et al
Where People Buy Peptides: Online "research chemical" suppliers No prescription needed Sold as vials of powder You reconstitute with sterile water Quality unknown Purity unknown 12-58% of supplements are contaminated with unlisted substances Compounding pharmacies (illegally) Some still compound banned peptides Higher quality control (theoretically) Requires prescription Legal risk for pharmacy and doctor Anti-aging/wellness clinics Cash-pay practices May source from gray market Charge $500-2,000+ per month Often stack multiple peptides Black market / gym dealers Sold alongside anabolic steroids Zero quality control Highest contamination risk The Quality Control Problem FDA warnings: Compounded peptides may have impurities Manufacturing varies widely No standardization Cross-contamination possible Real risk: You're injecting a substance of unknown purity, made in facilities with unknown quality control, based on research that doesn't exist, for conditions that haven't been studied
