NIOXIN System 3 Cleanser with Glyco-Color Shield™ is a volumizing shampoo formulated specifically for fine, chemically enhanced hair. Glyco-Color Shield™ is a revolutionary system of dual-protection technology aimed at both safeguarding the scalp skin from drying irritation and preserving the vibrancy of color-enhanced hair. Hair that has been treated with Glyco-Color Shield™ resists the penetration of water/cleansing mixtures, reducing the "solvation effect" on the synthetic color. It also includes UV-A/UV-B inhibitors to prevent environmental damage.