Redken´s Bonding Care Complex + Citric Acid works at a molecular level and penetrates the cuticle capturing metal ions, reinforcing weakened bonds and improving hair strength. Redken Acidic Bonding Concentrate Leave-In Treatment helps leave in repair and leave out damage.Best For:- Damaged Hair- All hair types and textures- Suitable for color-treated & chemically-processed hairFeatures:- Combats 1 year of visible damage in 1 use- Strength repair in 1 use- Heat protection up to 450/230 degrees- 88% visual reduction of in split ends- Bond repair on the go- 2x less breakage- 10x smoother- PH balancing- Ultimate repair, intense conditioning, and color fade protectionSpecifications:Ingredients:- Aqua/Water/Eau, Dimethicone, Cetearyl Alcohol, Amodimethicone, Phenoxyethanol, Polyquaternium-37, Dimethiconol, Parfum/Fragrance, Propylene Glycol Dicaprylate/Dicaprate, Trideceth-5, Steareth-20, Cetyl Hydroxyethylcellulose, Glycerin, Citric Acid, Limonene, Ppg-1 Trideceth-6, Trideceth-10, Sodium Hydroxide, Chlorhexidine Digluconate, Sorbitan Oleate, Acetic Acid, Linalool, Citronellol, Citral, Eugenol.How to use acidic bonding concentrate leave-in treatment: - Use as a complete system with Acidic Bonding Concentrate Shampoo and Conditioner. Apply to clean, damp hair. Leave in. Do not rinse. Style as usual. Avoid contact with eyes.