Targeting visible damage, Redkens Acidic Bonding Concentrate Intensive Pre-Treatment Bond Repair nourishes the hair to encourage a stronger look and feel. n Suitable for all hair types and textures, the rinse-off formula stars the brands highest concentration of its 14% Citric Acid and Bonding Care Complex, developed to condition and nurture weak bonds due to colouring. pH-balanced, the treatment diminishes the look of dryness, brittleness and split ends, supporting a renewed effect after washing.