Retinoic Acid (Vitamin A)

Retinoic Acid (Vitamin A)

As a naturally occurring form of vitamin A, retinoic acid (or tretinoin) may be used topically for sun-damaged and acne-plagued skin. While the related and less effective retinol is allowed in cosmetic products, the United States Food and Drug Administration regulates retinoic acid as a prescription pharmaceutical as featured in the trade formulations Renova and Retin-A.