BUILD A BOND LEAVE IN 3.4OZ. Benefits: Provides 8x stronger and 94% smoother hair* (*System of Instacure Build-A-Bond Shampoo, Conditioner, Mask & Balm vs non-conditioning shampoo). 83% say hair feels immediately revived after 1 use** (**based on a consumer test). Heat protection up to 450F/ 230C. Frizz control for up to 72 hours* (* vs non-conditioning shampoo). Easily detangles and conditions hair. Key Ingredients: Professional leave-in for mega damaged hair. Free from sulfates, parabens and mineral oil. Luxurious texture evenly coats hair without weighing down. Features: 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 for an irresistibly silky finish.