ok so here it is my hair is natrually dark brown but with a hint of red. I die my hair black every 4 months or so. but the problem is that my hiar undies and keeps getting lighter I use shampoo and conditioner for colored hair and don't use products with alcohol but it still undies and turns into a goldish brown. I have used revlon lorial garnier. does this happen to any of you?
Everyones hair holds dye differently. Yours just might not hold dye as well as others. But the second mistake you're making is using box dyes. Those dyes are complete crap. Your best bet would be to get your hair done professionally. I know its more expensive but the dye is of a much higher quality that they use and holds better. Or if you have a friend who is a cosmetologist you could have them get you some dye from those stores that only sell to licensed hair dressers. I dye my hair a deep auburn red and my friend is licensed and does my hair and the dye she gets lasts in my hair much longer than the boxed stuff.
I wouldn't know that many methods to prevent your hair from losing it's color besides, not to use hot styling tools (for some reason I think that's what undies my hair, the heat) also the sun tends to gnaw at the dye in my hair and just undyes it, I think hot styling tools and the sun have heat in common which undyes the hair. As for how to prevent it, I don't have any ways of preventing that I only know what undyes it,...guess you can't avoid such a thing...besides trying not to wash hair as much but that'd be kinda gross so you should redye it,..even if you don't like redying it (like me because of the ammonia and scent) just use a kind that is ammonia free cause that stuff causes cancer and that isn't too sweet.