The Excellence Mask deeply restores moisture, while replenishing hair’s Keratin chains from the inside out, leaving hair shiny and vibrant. This unique treatment revitalizes dull, dry, brittle, or porous hair reversing damage caused by repeated color service. Thanks to enzymes and tannic acid develop a unique system that leaves your hair smooth activated by the heat. Enzymes get the chemical reaction proceeds faster and achieves tannic acid molecular restructuring, called enzyme-linked Protein Molecular restructuring.Smoothing Power: 4/5 Reconstructive Power: 4/5 Hydrating Power: 4/5 Dermatologically Tested!