Offering up to three days of fly away-free hair, the Redken Acidic Color Gloss Activated Glass Gloss Hair Treatment is a five-minute formula that instantly smooths, softens and nourishes the lengths after three days*. Combining an advanced pH formulation and Acidic Shine Complex, the treatment diminishes the appearance of breakage and brittleness, restoring a mirror-like shine with a fuller-looking finish. Citric acid visibly seals the cuticle with moisture, supporting up to 72 hours** of hydration, while amino acids and conditioning agents deposit glossing molecules for the silkiest lustre that lasts until your next wash. *Consumer test when using full system of Acidic Color Gloss. **Based on consumer test - Acidic Color Gloss system of shampoo, treatment and leave in.