BOND BUILDER MASK: Bond Builder Restructuring Pre-Shampoo Hair Treatment is a restorative repair hair mask for damaged, color-treated, or overprocessed hair., HOW TO USE: Start with a large pea sized amount, spreading in sections through mid-lengths and ends of towel dried hair. Leave for a minimum of 10 minutes (the longer the better) before washing out., GREAT FOR SPLIT ENDS: Instantly seals broken ends for stronger, visibly healthier hair. It forms a shield on the hair, helping to prevent future damage., IDEAL FOR DAMAGED HAIR: This hair damage repair mask works to make hair more resistant to damage. Reduces snapping and splitting for stronger, smoother strands., SUSTAINABLE: Many of our products are vegan-friendly and we never test on animals. Our packaging is sustainable and crafted from recycled materials such as sugarcane bio-plastic and Post-Consumer Recycled (PCR) plastic.