Formulated with 12% Cationic + Amino Acids, the Acidic Protein Amino Concentrate is our most powerful formula ever that balances protein levels of the hair, helps reduce breakage and strengthen hair. Built with the pro in mind, the new cream like consistency allows for better control of application and layering with Acidic Moisture Concentrate. Suitable for color treated hair. The concentrate visibly reduces the appearance of surface damage in a single use when used as a system with Acidic Moisture Concentrate and Acidic pH Sealer. Formulated at salon expert concentration.