Tonic shampoo 300ml against hair loss. It effectively cleanses and strengthens the hair by strengthening the hair from the root. Biotin (vitamin B8 or vitamin H) plays an important role in hair growth and is useful for treating hair loss. Biotin deficiency causes hair loss, while treatment with it has been shown to restore normal hair growth. The polygala, a plant known since antiquity, for its beneficial properties, prevents the hair loss process and stimulates the growth of new hair. Ideal for any type of hair