1 Billion Bonds in Every Bottle to Combat Damage! Restore hair strength and repair damage with Matrix Instacure Build-A-Bond Super Sealing Leave-In Balm for very damaged hair. This advanced formula, featuring citric acid to fortify hair and squalane to smooth and soften, provides protection against frizz, breakage, and heat. Details & Benefits: 8x Stronger & 94% Smoother Hair (System of Instacure Build-A-Bond Shampoo, Conditioner, Mask & Balm vs. non-conditioning shampoo) 83% of users say their hair feels immediately revived after just one use** (**based on a consumer test) Heat protection up to 450°F/230°C Frizz control for up to 72 hours* (*vs. non-conditioning shampoo) Easily detangles and deeply conditions hair Key Ingredients: Citric Acid: Penetrates deep into the hair fiber to strengthen and reinforce strands from within. Squalane: Works on the hair’s surface to soften and smooth each strand, leaving a silky, irresistibly smooth finish. Features: Professional leave-in treatment for extremely damaged hair. Free from sulfates, parabens, and mineral oils. Luxurious, lightweight texture coats hair evenly without weighing it down. Give your hair the ultimate repair and protection with Matrix Instacure Build-A-Bond Leave-In Balm!