Are peptides in skincare regulated as drugs or cosmetics in the US?

In the US, topical peptide products are regulated as cosmetics under the FD&C Act as long as no drug claim is made. Claims such as 'visibly reduces wrinkles' are cosmetic-acceptable, while 'rebuilds collagen at the cellular level' may cross into drug territory. Always have a regulatory consultant review your label copy before launch. AJ Cosmo Labs can connect you with formulators who understand compliant claim language.