Serum
The OrdinaryRetinol 0.5% in Squalane
Retinol
Vitamin A
Speeds up cell turnover and softens fine lines. Very effective, but the main cause of dryness, peeling and sun sensitivity in a routine.
Safe amount 2 studies cited
Start at 0.25-0.5% a few nights a week; avoid during pregnancy
Technical data
Dose-response breakdown and source citations behind the rating above.
Safety by concentration
0.1 to 0.5%Use with care
Cited sources
Cosmetic retinoid use in photoaged skin: A review of the compounds, their use and mechanisms of action
Mambwe et al., International Journal of Cosmetic Science · 2025
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Frequently asked questions
Is Retinol safe?
Speeds up cell turnover and softens fine lines. Very effective, but the main cause of dryness, peeling and sun sensitivity in a routine. Start at 0.25-0.5% a few nights a week; avoid during pregnancy