SkinCeuticals Metacell Renewal B3A comprehensive daily emulsion formulated with 5% niacinamide (vitamin B3), 2. 5% firming tripeptide concentrate, and 15% pure glycerin to address early signs of photoaging. It improves the appearance of skin laxity, texture, and overall radiance. Key Benefits: Reduces the appearance of fine lines and wrinkles. Improves skin firmness and elasticity. Enhances skin tone and radiance. Provides intense hydration without a heavy feel. Key Ingredients: 5%