How long will it take for the fine, yellow hairs to turn into regular hair?
It takes a maximum of 2 years for the fine, yellow hair on the scalp to grow longer and darken in colour. One will have completed 3 treatments during this period; and considering that the 4th and 5th Treatments will be carried out as before, that is, using one vial per week; the fine, yellow hairs will be seen to turn into regular hair during the application of the 5th box.