This bundle helps to reduce breakage and repair strength formulated at salon expert concentration. Redken Acidic Protein Amino Concentrate 100ml Formulated with 7% Cationic + Amino Acids. For professional use only to balance protein levels of hair. Helping to reduce breakage and repair strength. Redken Acidic Moisture Concentrate 500ml Formulated with 10% Glycerin. For professional use only to balance moisture levels of hair, up to 2X more moisture in a single use. Redken Acidic Ph Sealer 250ml Formulated with an acidic pH of 3.0 4.0. For professional use only to help balance pH levels in the hair.