What it does
Independent research is more limited than for retinol and retinal; it should not automatically be considered superior or equivalent.
A cosmetic retinoid found in formulas aiming to balance activity and tolerance.
Independent research is more limited than for retinol and retinal; it should not automatically be considered superior or equivalent.
Evening routines, introduced gradually.
Barrier-supporting ingredients and SPF 50.
Follow retinoid precautions and do not interpret a complex's trade name as the percentage of pure HPR.
Evening.
The percentage cannot be inferred from INCI order. WAI LAB shows it only when stated by a verifiable source.
In the European Union, ingredients above 1% are listed in descending order by weight; below 1%, they may appear in any order. Their position therefore cannot be used to calculate an exact percentage.
Its position helps you understand the formula, but does not on its own establish effectiveness or an exact percentage.
WAI LAB distinguishes cosmetic function, regulatory context and scientific literature. This information is not a substitute for medical advice.
12 catalogue products list a recognised form of this ingredient in their INCI.