Caprooyl Tetrapeptide-3
Synthetic signaling peptide generally used at very low concentrations. No major irritation, sensitization, endocrine, carcinogenicity, or contamination concerns have been identified in cosmetic use, although ingredient-specific safety data are limited.
Why Oh Daisey rates it this way
Synthetic signaling peptide generally used at very low concentrations. No major irritation, sensitization, endocrine, carcinogenicity, or contamination concerns have been identified in cosmetic use, although ingredient-specific safety data are limited.
What it does
Skin Conditioning, Hair Conditioning
How to read this rating
This rating reflects the Oh Daisey ingredient standard and the evidence currently available for cosmetic use. Product safety can also depend on concentration, exposure route, formulation, manufacturing quality, and individual sensitivity.