Product description: Unique renewing serum concentrated with pure and gradual retinol molecule, anti-aging signs with vitamin B3 to restore the skin. Retinol (pure + gradual) is the golden medical molecule with high effectiveness to restore the skin and target deep wrinkles, with vitamin B3, with better tolerance to improve and soothe the skin barrier, and glycerin to hydrate and help repair and protect the skin barrier. Usage instructions: Apply in the evening on the face and neck. Use with daily sunscreen.