This fast-acting, 0.3% retinol night serum accelerates skin surface cell renewal with retinol that penetrates up to 15 surface layers deep into the skin. To ensure maximum efficacy, its innovative packaging isolates a high concentration of pure retinol powder so it can be freshly mixed into the serum upon first use. Experience visible reduction of fine lines in just 5 days, and visible improvement in deep wrinkles in 2 weeks. With continuous use, this night serum with retinol helps skin look renewed for a visibly smoother, more youthful appearance.