Ⓐ
PeptiBrief
Cosmetic peptide

Acetyl Hexapeptide-19

A poorly characterised cosmetic peptide used in anti-ageing formulations. Published evidence specific to acetyl hexapeptide-19 is extremely limited.

Evidence confidence

Human
2/5
Some human clinical evidence
1 citation
Animal
Not yet assessed
Trust Engine review pending.
Mechanistic
Not yet assessed
Trust Engine review pending — see editorial links below.
Editorial evidence links exist, but this category has not yet completed Trust Engine assessment.
Safety
Not yet assessed
Trust Engine review pending.

Claimed uses

Mechanisms

  • not-yet-documented

Safety notes

Ingredient-specific safety data are limited. Finished-product tolerability does not establish the safety or efficacy of the isolated peptide.

Regulation
  • Cosmetic ingredient; not an approved medicine. Claims are subject to cosmetic-product and advertising rules in the relevant jurisdiction.

References

  1. Facial anti-aging treatments with soft peeling and microneedling technique · 2021
Last reviewed
11 July 2026
Important PeptiBrief is an educational information platform. It does not diagnose, prescribe, sell peptides, recommend dosing, encourage self-experimentation or replace qualified medical care. Published scientific evidence is kept separate from community observations and uncertainty.