Harklinikken Stabilizing shampoo, when used daily with our Extract, is a cornerstone of our hair regrowth treatment program. Stabilizing shampoo deeply cleanses the scalp and hair follicles and reduces sebum production, which is a contributing factor to hair loss caused by hormone changes. Stabilizing shampoo brings luster to dull or dry hair. Stabilizing shampoo is not recommended for highly processed blond hair. Select from sizes below.