What it does
Requires one fewer conversion step than retinol, but effectiveness and tolerance still depend on the formula.
Retinoids
Retinal.
A vitamin A derivative used in evening treatments for texture, lines and blemishes.
- INCI name
- Retinal
- Function
- A cosmetic retinoid, a metabolic intermediate between retinol and retinoic acid.
- Information level
- Good cosmetic evidence
- Last reviewed
- 22 September 2026
Who may benefit
Users with an established routine who are willing to introduce it gradually.
Compatibility
Ceramides, panthenol, squalane and SPF 50.
Precautions
The same general precautions as for retinoids: possible irritation, evening use, sun protection and caution during pregnancy or when planning pregnancy.
How to use it
Evening, gradually increasing frequency.
Concentrations
The percentage cannot be inferred from INCI order. WAI LAB shows it only when stated by a verifiable source.
HOW TO READ IT
What it means in the INCI list?
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.
SOURCES
Where the information comes from.
WAI LAB distinguishes cosmetic function, regulatory context and scientific literature. This information is not a substitute for medical advice.
FROM UNDERSTANDING TO CHOOSING
Products with Retinal.
14 catalogue products list a recognised form of this ingredient in their INCI.
14 resultsVerified profiles with declared concentrations appear first.
