Retinols are still the best anti-aging treatments available. Retinols boost cell turnover which minimizes fine lines, wrinkles, acne and hyperpigmentation. This formula contains hydrating jojoba oil and shea butter to help reduce any irritation that usually comes with retinols. It also contains the antioxidant power of vitamins C and E which are great for neutralizing free radicals. Grant your skin the defence it needs to stay healthy and fit with Obagi Professional-C Serum 20%. It's designed to visibly reduce the signs of aging, protect your skin from future damage from free radicals, and support healthy skin function. Grant your skin the defence it needs to stay healthy and fit with Obagi Professional-C Serum 20%. It's designed to visibly reduce the signs of aging, protect your skin from future damage from free radicals, and support healthy skin function. Grant your skin the defence it needs to stay healthy and fit with Obagi Professional-C Serum 20%. It's designed to visibly reduce the signs of aging, protect your skin from future damage from free radicals, and support healthy skin function.