Are peptides safe?

Peptides are not automatically safe or unsafe—the safety depends on the specific peptide, how it is used, the dose, the quality of the product, and whether it has been adequately studied in humans.

Some peptide-based medicines have been extensively studied and approved for specific medical uses. However, many peptides marketed for wellness, bodybuilding, recovery, or anti-aging have limited human safety data and may not be approved for those uses.