Bioactive peptide
HEPTAPEPTIDE-21
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A synthetic seven amino acid signal peptide formulated into anti-ageing skincare. It is well tolerated in typical use, though efficacy claims rest mostly on supplier and small in vitro studies.
Function
Skin benefits
- Targeted signal peptide intended to support skin firmness and elasticity
- Generally well tolerated at low cosmetic use levels
- Low molecular weight peptide compatible with serum and cream bases
- Synthetic biomimetic peptide with defined sequence
Known concerns
- Limited independent clinical evidence for marketed claims
- Stability and bioavailability depend heavily on the formulation
- Rare hypersensitivity reactions reported with peptide cosmetics
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related bioactive peptides
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.