Nutriol is formulated to remineralize the scalp and hydrate the hair - helping your hair look and feel more abundant. Formulated for use the the Galvanic Spa System II. Contains 12 0.23 oz. vials. Visit NuSkin's website for additional information, including: Benefits Usage instructions Clinical testing results Testimonials Complementary products Frequently asked questions The NuSkin and Pharmanex names and product names are registered names of NuSkin and are used only to describe this product manufactured by them.