Hair health depends on an internal supply of essential nutrients, not just external care. A good supplement provides biotin, zinc, selenium, copper, hydrolyzed keratin, and marine collagen, combined with fortifying plants like horsetail and arugula. These active ingredients nourish the follicle and strengthen fiber, color, and shine. A 3-month course of treatment, combined with a gentle and nourishing routine, improves density, regrowth, and shine. Customization based on your hair profile optimizes visible and lasting results.