What is it for? Bioclin Phydrium SECRET HAIR FIBERS How to use: Use on previously washed hair. Separate the vial using the patch pattern and distribute the contents evenly on the hair. Gently massage hair and scalp. Do not rinse. Features: Intensive treatment to restore vitality to hair weakened by dyes, discoloration, permanent and atmospheric agents. The hair regains brilliance, volume and fragility thanks to the restorative, protective erimineralizing action of Magnesium, Zinc, Sodium, Manganese and Equiseto and the eco-friendly moisturizer of Pantenol and PCA. Cod. 670V