Topic

Retinoids

Retinoids have the strongest evidence base in cosmetic dermatology and the widest gap between what a label says and what a formula delivers. Stability, concentration and base chemistry matter more here than in any other category.

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  Ingredient analysis

  Is 0.2% retinol worth using at all?

  An eight-ingredient anhydrous retinol serum at a concentration below most published trials. What the squalane base buys, and what 0.2% can realistically do.

  15 September 2026