An innovative dual-action pre-shampoo treatment that visibly reverses hair damage, repairs bonds & removes calcium build-up, leaving hair 99% stronger and healthier. Apply in the shower, leave for 5 minutes, layer shampoo & rinse. Hair Texture: Straight and Wavy Hair Type: Fine, Medium, and Thick - Glycine: This amino acid penetrates hair's inner layer, dramatically reduces breakage, and helps to neutralize dullness, and stiffness.