The Schwarzkopf Gliss Hair Repair products are is a great way to save the salon fee, and repair your hair at home. If you are looking for any hair repair items, the Schwarzkopf Gliss Hair Repair are what you are looking for! Schwarzkopf GLISS Ultimate Repair Express Repair Leave-In Conditioner – I personally have always loved leave-in conditioners. This leave-in contains 3X liquid Keratin to precisely repair damaged hair and replaces lost Keratin leaving hair restored and manageable.