u/Furnozal

Hi guys!

i’m dyeing my hair tomorrow with the good dye young lightening kit, and I need advice. For using the lightening kit for both my raccoon tails and highlights, should I use foil and if so how? Some people have told me not to or to use foil. Regarding the foil, I was also wondering how to put it on my hair, under it and above it or just above it?

Thank you!!