Hydroxyproline
Naturally occurring amino-acid derivative with generally low concern in topical cosmetic use. No major toxicity or sensitization concerns have been established at typical cosmetic concentrations.
Why Oh Daisey rates it this way
Naturally occurring amino-acid derivative with generally low concern in topical cosmetic use. No major toxicity or sensitization concerns have been established at typical cosmetic concentrations.
What it does
Skin 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.