I am Indian. I had dark black hair when I was younger, much of which is gray currently. I tried Mayraki gray coverage permanent hair color dye shampoo. It's on the expensive side, but I was looking for something without much chemicals. Unfortunately, it did not work AT ALL. Not a single gray hair was covered. It's expensive and was a waste of time and money. I sent pictures of my still gray hair to the company and am waiting to hear.