Retinoid

A family of vitamin A–based compounds used to treat acne (by preventing clogged pores) and reduce signs of aging. Prescription retinoids like tretinoin are stronger than OTC retinol.

Also known as: Topical Retinoid, Tretinoin. Category: Skincare.

In men's style, "retinoid" belongs to the Skincare family of terminology. For the full A–Z reference of men's fashion and grooming vocabulary, see the Men's Style Glossary.

Related terms

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• SPF — Sun Protection Factor — a measure of how well a sunscreen protects against UVB burning rays. The AAD recommends broad-spectrum SPF 30+ with …