+22 How Long Is Mixed Hair Bleach Good For References. This combo removes the natural pigment in the hair strand and helps open the. “i recommend reading the manufacturer.

Web the maximum amount of time you should leave bleach on your hair is 30 minutes. Web since bleach is a harsh chemical, you could run the risk of irritating your scalp or damaging your hair strands, so it’s essential to take all the necessary precautions to. Web once you mix them to apply the bleach to your hair, that mixture has two stages of reaction: