Texture: the Anti-Hair Loss Serum from Gerovital Tratament Expert range has a liquid and light texture and once applied to the hair, it does not require rinsing. Results: 92% of subjects confirmed that the serum gives vitality to the hair and restores the healthy appearance of the hair (subjective evaluation), 76% of subjects confirmed that the serum strengthens the hair (subjective evaluation) and 96% of subjects confirmed that the serum does not load the hair (subjective evaluation). How to use: the serum must be applied directly to the hair root, on the hair freshly washed and massaged vigorously for 2-3 minutes. It does not rinse!. Contains: Procapil (stimulates hair growth) and BioCapigen (strengthens the root) and thanks to the dual action of theese two ingredients, the hair follicle atrophy is prevented and the hair is strengthend. Anti-hair loss treatment: the leave-in serum has a strong, long-term effect against hair loss because prevents hair follicle atrophy, helps strengthen roots and stimulates healthy hair growth.