Skincare | How Retinol Really Works? ........ Retinol is a form of Vitamin A that is converted to retinoic acid in the skin. It works to repair photo-damaged skin, acne, and other sluggish skin conditions. It helps to normalized cell turnover, increase collagen deposition and bind moisture in the skin. It inhibits melanogenesis to promote a clear complexion and an even skin tone. Amazing skincare ingredient!