Schwarzkopf Gliss is a caring hair care range that offers quality products for every hair type. The liquid keratin contained in Gliss products repairs and regenerates hair both inside and out. The Schwarzkopf Gliss winter Repair series offers a unique treatment for winter hair. Repairs hair damage caused by dry room air, cold weather, freezing wind and the use of a peony & scarf, The effective composition contains a healing Repair serum.