Retinyl palmitate (Vitamin A) supports the production of collagen and prevents its breakdown. Collagen helps to increase tissue volume and decrease the appearance of wrinkles in mature skin. Vitamin A can also help skin discolorations by increasing cell turnover and is important in angiogenesis, which is the repair and redevelopment of the vascular system. Vitamin A + Antioxidants is ideal for all skin types while supplying a wide range of antioxidants. You can use this nightly, but it is recommended to be used twice weekly initially and be increased according to tolerance. Acne can respond well to the addition of Vitamin A, but dryness may occur. Do Not Use If Pregnant or Nursing pH 3.0 Retinyl Palmitate 1.0% and Salicylic acid 0.5% Stimulates the repair and redevelopment of the vascular system Stimulates the production of collagen and cytokines Use 3 to 7 nights per week depending on how tolerated