I am recovering from breast cancer and lost ALL my hair this last summer due to the chemotherapy. Now that it is coming back , it is thin and completely gray/white. Have been hesitant to color because I didn't want to lose it again and because it is coming back so thin. In truth.it is sparse around my hairline in the front. This color product was the gentlest I have used. I've colored or had my hair colored for 20 years so have a lot of products to compare this one with. Also, there is NObrassy tone as the color begins to wear which is often a problem with the blonde shades. Thank you again for such a wonderful product and for making it so easy to try.