The Acidic Bonding Concentrate 5-Min Liquid Mask by Redken is an intensely nourishing hair mask that instantly strengthens hair, provides long-lasting moisture, and improves hair condition after just one use. Enriched with citric acid and a highly concentrated Bonding Care Complex, the formula is based on the latest scientific findings in hair care research. The mask is suitable for all hair types and structures, making it the perfect all-round treatment for anyone seeking moisturized, shiny, strengthened, and easier-to-detangle hair – all in just 5 minutes.