Alumier MD's Ultimate Boost Serum is a lightweight serum that boosts hydration and enhances the skin’s natural hydrolipid barrier with sodium hyaluronate and niacinamide. MATRIXYL Synthe'6 strengthens skin and improves elasticity, reducing the appearance of fine lines and wrinkles. Powerful antioxidants, including glutathione and a blend of tea extracts, neutralize aging free radicals to protect the skin from future damage. Perfect to use as a booster under moisturiser.