Let me share my experience. My scalp could never handle all over permanent haircolor. Hairdresser used to pull some hair through a frosting cap, then deposit permanent color on the strands to camoflage. Worked well for years then I had just too much gray to contend with. I started doing the 28 day haircolor. Had great coverage but it eventually ruined my towels and my hair. Started to break right off. Not sure it was the color or just the severe stress I was under (or both). So in an effort to get my hair healthy again, I stopped all chemical processes. Wow what a shock, and still is. Took about 6-7 months for it all be be cut off. I thought I would be pure white, but the gray is much darker than I anticipated. I get a lot of compliments, but at 59, I'm still not so sure. But, when I think of sitting there while processing and the financial aspect....I can now spend that time quilting and money buying even more fabric.