ITK Skincare Gentle Hydrating Retinol Facial Serum for All Skin Types, 1 oz. This product is clinically shown to reduce fine lines + wrinkles, based on a clinical study of 40 people after 8 weeks. Intended for all skin types. Formulated with Encapsulated Retinol, a slow-release technology that helps reduce the appearance of fine lines + wrinkles and Tremella Mushroom which helps to hydrate skin + soothe redness. In an 8-week consumer perception study of 40 people, 100% of users saw an improvement in skin texture, 97% would recommend this product for sensitive skin, and 97% said blemish marks appear faded. Paraben-free, vegan, cruelty free, sulfate free, no synthetic fragrance. Dermatologist-tested. Recyclable box.