Deep Protect Density Mask leaves hair conditioned, manageable and soft. This professional treatment for fine hair is a density protection treatment that provides a reduction of up to 97% in hair breakage * Deep Protect Density Mask deeply conditions dry or colored hair. (* Based on 12 inch / 30cm hair length, measured by weight of broken hair versus conditonin-free shampoo) protecting hair from damage for all hair types, including curly hair.