Redken Acid Bonding Concentrate Intensive Treatment a professional product formulated specifically for damaged and weakened hair. Thanks to its innovative technology based on acids and amino acids, it strengthens the hair structure from the inside, repairing damaged cuticles and improving elasticity. The 150 ml treatment offers an intensive action that reduces breakage and prevents the formation of split ends, giving hair a healthier, softer and brighter appearance. Ideal for those who want a long-lasting result and visibly regenerated hair, this concentrate protects the hair during chemical treatments and exposure to heat sources. An effective solution for vulnerable hair that needs deep care and daily strengthening.