Goldwell Kerasilk original Care & Smoothness formula has been upgraded to the new Kerasilk Rich Care segment.A conditioning treatment for dry, damaged or unmanageable hair.Instantly adds essential moisture to restore shine and vibrancy to hair. Strengthens the internal structure of the hair with natural silk proteins and wheat bran lipids, leaving hair smooth, easy-to-comb, shiny and soft-as-silk.