Matrix’s High Amplify Root Up Wash Cleanser. Designed for fine, flat, or oily hair, this weekly clarifying shampoo targets root buildup caused by excess oil, product residue, and environmental impurities. The silicone-free formula deeply cleanses at the scalp without stripping or weighing down strands, creating the perfect foundation for amplified volume and long-lasting body. Whether you’re prepping for a blowout or refreshing your style midweek, this cleanser boosts lift right where you need it most—at the root.