HAIR TYPE: Thinning Hair, Dull hair, Dry Hair / Shu Uemura's lightweight Izumi Tonic Serum is inspired by the ancient Japanese tradition of nourishing hair with rice water. The advantage is that brittle hair and hair that is prone to breakage in particular benefit from the strengthening and thickening properties. Enriched with rice water and ceramides, the hair serum helps strengthen and thicken by increasing the diameter of the hair fiber. This should also ensure protection against hair breakage and split ends. For powerful, supple, soft hair full of shine. Application : Apply to dry lengths and ends. Do not rinse. For optimally strengthened results, use the serum after washing with the Izumi Tonic Shampoo, and the following Izumi Tonic Conditioner or Izumi Tonic Treatment.