This dietary supplement treatment for hair KeratinCaps by Klorane helps to provide strength and vitality to tired and growing hair. Composed of micronutrients (vitamins B3, B6, B8, and E and minerals: zinc and selenium), keratin, and cinchona extract containing quinine, these capsules revitalize hair and strengthen the shaft from within. At the rate of one supplement per day for 3 months, hair is healthy and strengthened.- Nourishes: this dietary supplement for hair provides essential micronutrients for the formation of hair and hair follicle.- Maintains: the strength and vitality of hair are preserved thanks to the internal action of the formula.- Prevents: KeratinCaps works from within to help strengthen weakened hair. It can be used in addition to the Anti-Hair Loss Serum.