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Ingredients
Retinoids (vitamin A derivatives) are genuinely effective for anti-aging and acne, but "retinoid" covers a range — cosmetic retinol, retinal, prescription-strength adapalene and tretinoin all differ in strength and how they're used. There's no single universal starting percentage; check the product's own directions and your tolerance. Most people do best starting low, using it 2–3 times a week, and always pairing it with daytime sunscreen, since retinoids increase sun sensitivity.
Retinoids are not recommended during pregnancy or while breastfeeding. If either applies to you, talk to a doctor or dermatologist before starting one.
Evidence reviewed · Aug 2026
- American Academy of Dermatology — retinoidsAAD
Retinoid use, tolerance-building and sun sensitivity
- PubMed — topical retinoid researchPubMed
Efficacy and irritation profile across retinoid types
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Content last reviewed 31 August 2026 by the SkinLabs Editorial Team.