Henna (also known as Henna) is native to Egypt, Pakistan, India and other regions. Arabs have used henna to dye their hair and tattoos for more than 2000 years. Since ancient times, Uighur girls have been using it to dye their hair and protect their hair. According to Uighur medical records, henna is warm, can promote blood circulation and remove blood stasis, can prevent skin fungal infection, and has a good effect on neurasthenia and headache. Henna contains tannins, flavonoids, naphthoquinone and other hairdressing nutrients. Dyeing hair with henna can prevent the hair from drying, breaking and splitting, completely tighten the scales on the hair surface, deeply nourish the hair, thus reducing the stimulation to the scalp and making the hair shiny and elastic. Henna can also prevent premature white hair, and people who already have white hair can avoid the continued generation of white hair after using it. There is no doubt that natural plant hair dyes are beneficial to people's health. In recent years, people are afraid of the harm of chemical hair dyes to themselves, and many people begin to use pure plant henna to dye their hair.
3. Galla Chinensis is a traditional Chinese medicine, which can also be used for ink making, plastic making and dyeing. 2 1 century, scientists have been studying how to dye hair with gallnut. In 2005, scientists discovered that Galla Chinensis contains trace acid enzymes, which can make the scales on the hair surface open automatically like breathing. Using nanotechnology, gallnut pigment was processed into a hair dyeing factor less than 5 nanometers, which made it enter the deep layer of hair. Achieve the ideal effect of natural hair dyeing, which is not easy to fade, irritating and allergic, and develop a series of natural hair dyeing products of "Wubeizi". Different colors can be extracted from the surface layer, middle layer and inner layer of gallnut, such as red, natural black, brown and so on. Therefore, it can produce chestnut brown, chestnut red, wine red, brown black, natural black, golden brown and other multi-color hair dyes.