Matrix - Insta Cure Build A Bond Instant Revival Liquid Mask 250mlRepairs damage and strengthens hair from within Deeply nourishes without weighing hair down Softens and smooths hair Provides 8x stronger and 94% smoother hair* (*System of Instacure Build A Bond Shampoo, Conditioner, Mask & Balm vs non conditioning shampoo) Key Ingredients: Citric acid penetrates deep into the hair fiber to strengthen and reinforce damaged strands from within Squalane works on the hair's surface, softening and smoothing each strand