OverviewBack to top of page Shikai - Henna Gold Color Enhancing Shampoo Silver Hair Formula - 12 oz. Code#:53924 Manufacturer:Shikai Size/Form:12 oz. Packaged Ship Weight:0.85 Silver Hair Formula -- Will minimize yellow tones and give a silvery luminescence to graying or white hair. Here's how it works: Blue and black malva flower extracts deposit a minute, highly reflective coating onto each hair shaft. This reduces any yellow tones and produces an intense shine. The result is an increased contrast between your white and colored strands and a new shimmering brightness.This effect will become more pronounced with continued use. Conversely, if you no longer desire this effect, it is easily washed out with regular washing.pH balanced at 5.5.This product is not designed to cover gray.