Antioxidant
ASCORBYL CARBONYL DIPEPTIDE-17
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A dipeptide linked to ascorbic acid via a carbonyl bridge — a stabilised vitamin-C derivative aimed at antioxidant and brightening use.
Ascorbyl carbonyl dipeptide-17 is a conjugate of L-ascorbic acid to a short dipeptide through a carbonate/carbonyl linkage. The intent is to stabilise ascorbic acid (which is notoriously prone to oxidation and browning in aqueous formulations) while retaining its antioxidant activity once cleaved in skin. Ascorbic acid and short peptides are both well-tolerated cosmetic building blocks. This specific derivative has not been reviewed by CIR or SCCS, and in-vivo conversion rates to active ascorbate depend on formulation pH, packaging and co-actives. Use levels are typically in the ppm-to-low-percent range of the supplier concentrate.
Function
Skin benefits
- Stabilised vitamin-C delivery concept
- Antioxidant activity
- Peptide linker aids solubility
Known concerns
- Conjugate stability varies
- No regulatory monograph
- Limited independent efficacy research
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.