Principle:
Bleaching agent consists of bleaching paste and catalyst. When in use, it is necessary to fully mix the bleaching paste and the catalyst, and then cover the hair with the mixed paste to achieve the purpose of full oxidative bleaching.
Because the use of bleach does not cause any harm to hair and hair follicles, it only oxidizes the pigments contained in hair, so it needs to be used continuously. According to the length of occurrence and natural shedding time of different heads, it is necessary to use bleach once every two weeks to bleach the long hair again.
In the process of using bleach, bleach oxidizes the pigment contained in hair, and only bleaching can make the original pigment lose without destroying the basic structure of hair, beard and hair follicle. It is a short-term effective cosmetic. When the beard and hair grow longer after a certain period of time, the newly grown hair still contains pigment. At this point, if necessary, you can reuse bleach to continue bleaching your hair.