Although topical retinoids, like tretinoin gel or cream, have not been extensively ... range from 0.025 percent (much more tolerable) to 0.1 percent (the strongest possible).

Both tretinoin and retinol are topical retinoids. This means they can be applied to the skin as a cream or gel-like formula .

Tretinoin 0.01%, 0.025% ... Increased irritation in weather extremes. Gel: flammable. Pregnancy (Cat.C): not recommended. Nursing mothers. Caution with concomitant topical medication, medicated ...