What it is: A leave-in treatment mask for all hair types that clinically reverses damage in four minutes. The patented peptide technology works to repair damage from bleach, color, chemical services, and heat, restoring strength, softness, smoothness, and bounce to hair.Hair Type: Fine, Medium, and ThickHair Texture: Straight, Wavy, Curly, and CoilyHair Concerns:- Damage/Split Ends/Breakage- Color Safe- Straightening/SmoothingKey Benefits: - Restores strength, softness, smoothness, and bounce- Repairs damaged hair- Easy leave-in formula delivers lasting resultsHighlighted Ingredients:- K18Peptide™: Repairs damage from bleach, color, chemical services, and heat.Ingredient Callouts: This product is vegan, cruelty-free, and comes in recyclable packaging.What Else You Need to Know: This mask is powered by the patented K18Peptide, which is just the right size and molecular structure to reach the innermost layers of hair and re-connect broken keratin chains responsible for hair's strength and elasticity. Fragrance Description: The light floral scent features notes of jasmine and peony.Clinical Results: In a clinical study on hair that was bleached 8 times, after 2 uses:- Biotech-powered K18Peptide restored damaged hair by up to 82%This product is an Allure Best of Beauty award winner.CLEAN at Sephora is our commitment to offering formulas that go beyond regulatory standards to avoid controversial ingredients without sacrificing on effectiveness.