The Redken Acidic Bonding Concentrate 24/7 Night and Day Leave-in Hair Serum is a revolutionary bond repair treatment designed for damaged, processed hair of all types, providing continuous protection and restoration around the clock. Formulated with potent Citric Acid, Polyglutamic Acid, and Squalane, this lightweight serum deeply strengthens hair fibres, prevents breakage, and delivers visibly softer, shinier results with a luxurious citrus and lavender fragrance. Apply this residue-free serum daily and nightly to clean, damp or dry hair, allowing it to absorb instantly for optimal repair and a lasting shield against aggressors