Retinoid

Retinoid

Skin (Commons). Retinoids (tretinoin, adapalene, isotretinoin) are the medical acne/photoaging ladder.
Field	Medicine
Also known as	tretinoin, retinol, adapalene

A retinoid is a vitamin-A derivative used on skin for acne and photoaging (tretinoin, adapalene, weaker retinol). It is a derm tool. Purge, sun sensitivity, and "start slow" are the actual instructions — from a clinician, not from a stack screenshot.

Prescription versus cream

Tretinoin and isotretinoin are medicine. Cosmetic “retinol” is a weaker cousin. See acne and skin.

See also

• Acne
• Skin
• Sunscreen