POWERED BY SCIENCE: • 1% strength complex. All hair is essentially comprised of protein. Proteins are made up of keratin and amino acids that can become weakened over time. Extreme system with protein helps to strengthen damaged hair and promote overall hair health. • Emollients, xylose, ceramides, amino acids, arginine, vegetable proteins.

HOW TO USE: Use as a complete regimen with Extreme Shampoo and Conditioner. Apply on towel-dried hair to fragile or damaged areas. Do not rinse out.