Skin and hair
Published human evidence context
The review identifies small clinical studies of topical formulations, but differences in formulation, skin penetration, comparators, and study design limit confidence in the ingredient-specific effect.
- Form
- Topical cosmetic acetyl hexapeptide-8 products
- Route
- Topical
Limits and source
Independent replication, long-term safety, actual skin penetration, and the contribution of co-ingredients remain uncertain. Cosmetic marketing is not evidence of FDA approval or demonstrated therapeutic effect.