Oil - free, fragrance - free Differin Gel contains the retinoid adapalene, the first new over-the-counter active ingredient for acne in more than 30 years. (acne.com)
The most common topical retinoids for treating acne are tretinoin and adapalene which are offered in gel or cream form. (consumerhealthdigest.com)
Differin Gel contains adapalene, a type of retinoid. (differin.com)