How to Use: Apply the retinoid serum to clean skin at night. Use 1-3x per week, increg use as tolerated. Use with SPF in the AM. Avoid contact with eyes. Made with Upcycled Ingredients: Rich in antioxidants, 3% upcycled Kalahari melon seed oil & 2% upcycled raspberry seed oil soothe skin & replenish moisture. It’s a win for your skin & reduces food waste!. Hydrate Dry Skin: In addition to two different types of retinoids, the wrinkle serum also contains Ceramide NP to rehydrate, prevent moisture loss & replenish the skin’s natural barrier. Immediate Improvements: Based on consumer panel in a clinical study on subjects of all skin types when using the product as instructed, all saw immediate improvement in firmness & smoothness after 1 use. Additionally, all saw an improvement in fine lines & deep wrinkles after 4 weeks of use. Retinol Results, Doubled: This anti aging serum contains two potent retinoids: Stable encapsulated retinol delivers gradual-release results overnight to firm and target the look of fine lines and deep wrinkles, while fast-acting retinal promotes immediate wrinkle-fighting action.