Paula's Choice RESIST Intensive Wrinkle-Repair Retinol Serum reduces the look of fine lines and wrinkles for a more youthful, radiant complexion. A proprietary blend of retinol and antioxidants address the appearance of wrinkles, improves firmness, uneven skin tone, and red marks leaving skin looking perfectly radiant.Key Ingredients:Stabilized Retinol: improves the appearance of wrinklesVitamin C: helps brighten and replenish skinKey Benefits:Delivers pure retinol to skin in a silky-smooth serum fluidAddresses the appearance of wrinkles, uneven skin tone and red marksImproves firmness leaving skin soft and smoothMid-strength 0.1% retinol concentration