Terre A Mer Intensive Rescue Therapy Hair Treatment Masks is the ultimate solution to rescue your hair when it needs a professional salon treatment at home. This dual-action professional hair treatment both hydrates and repairs damaged hair simultaneously. With 10X more keratin than average repair hair products, it strengthens the hair's core structure and restores damaged curl patterns, leaving your hair looking and feeling like new. It is a professional hair product designed to intensively infuse moisture molecules into the hair to revitalize hair and rescue it after exposing it to the elements. It is formulated with macadamia oil, linseed extract, advanced pure keratin combined with next-generation essential phospholipids and glycosphingolipids. It can be used on wet or dry hair. It is leave-in, so you do not need to rinse it out. It is suitable for all hair types, but it is especially beneficial for damaged or dry hair.