Joico’s Defy Damage KBOND20 Power Masque rebuilds and shields stressed hair using KBOND20 and K-PAK Keratin Technology with 18 essential amino acids, including arginine, to restore strand strength and reduce breakage for hair that can feel up to 5X stronger after one use. Its thick, creamy texture absorbs quickly, while a liposome delivery system helps drive actives deep for rich hydration, instant detangling, and noticeably softer, more pliable hair in just 25 minutes. It also helps normalize pH for color-safe care and forms a barrier against pollution, supporting long-lasting frizz control and easier styling. Paraben-free and cruelty-free with a parfum, its designed to be rinsed out for smoother, shinier, more resilient results, yet can be left in when extra reinforcement is needed.