Here are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community.
I only dye my roots to cover up my gray with black dye. I had a bunch left over and put it in the refrigerator. Is it still safe to use on my roots? It's been stored for about a month.
If you havent mixed with the developer it is safe to use. You dont have to make up the whole batch. The ratio of dye to developer is 1:1. I only mix what I need for each dye job.
