Potent, leave-in supplement instantly strengthens fragile color-treated hair. Clinically proven to reduce breakage by 50 percent in just one use. Loaded with protein-building amino acids, b vitamins and sulfur-rich sea kale. BENEFITS: Supplements and restores key internal bonds to strengthen hair, reducing breakage by over 50% in just one use. SUGGESTED USE: Shake bottle. Pour small amount in hands, smooth through towel-dried hair. Do not rinse. Style & blow-dry as usual