Natural hair dye will be a direction for cosmetic research and development

However, the hair dye of imitating natural process is mainly using the melanin precursor namely dopa acid oxidation to produce the melanin.

Although their research has made significant development, but the process is difficult to control hair process unstable and difficult to form a product, so research in this area continues to continue. Natural dyes, new material biotin are still in the direction of research and development. Natural hair dye, generally speaking, has a low toxicity, irritation, and dyed the color of natural advantages. But difficult to source of raw materials, the complexity of the pigment extraction process, high cost, poor dyeing properties and other shortcomings.

Mention made to the natural melanin from squid Representative: There are two melanoma: called excellent melanoma,; the other is a brown melanin. The former make the hair is dyed brown and black. U.S. natural melanin as a hair dye, which contains 10% of the natural melanin, a brown solution (dubbed the product).

So far, henna is only natural raw materials used in hair dye industry, its main ingredient is 2-hydroxy-, 1, 4-naphthoquinone. According to reports, the henna a indigo blue raw ingredients. The two together can produce a black dye. The berberine pigment extracted from the plant phellodendron amurense, coptis, Africa Menispermaceae roots the African tetradrine, coptisine lemon glycoside alkaloids, stained yellow, and iron salts role dyed brown. Curcumin extracted from turmeric, staining for alkaline under the bright red, acid yellow, iron salts generated for brown.

Chamomile there stained blue. The color does not dissolve in water, soluble in the oil phase. It can be extracted from the saffron crocus glycoside minoxidil, dyed bright red. Beet red is extracted from sugar beet roots. Staining purple. Seven-ring compounds extracted from the leaves of Japanese cypress needles. The iron salts under the action of the reddish-brown. Soluble in ethanol extracted from the betel nut seed extract iron salts under the action of dyed black, dark blue or red and black. Geranium extract, iron salts under the action of dyed dark brown. The pure product is insoluble in water, soluble in lye. Firewood, contain anthocyanins, geranium pigment anthocyanin pigments, the reddish purple. Iron under the reddish-brown. Spirulina, seaweed and blue pigment contained iron salts under the action of dyed brown.

Tannins and a variety of metal can contact the mixed compounds can be used as hair dye, hair dyed various colors according to need, and no damage to the hair and skin, good hair. In general, the dyeing of gray hair is most common in middle-aged elderly. But the purpose of the United States, Western Europe and other countries, out of fashion, dress, make-up, color other than black hair dyed uncommon. Tannin is a multi-oxo-phenol compounds, a substance extracted from plants with the convergence of the skin and mucous membranes. The tannins are widely for tanning agents, anti-diarrhea medicine and anti-inflammatory agent.

Hematoxylin is extracted from the plant hematoxylin and it is a vegetable dye used to dyeing before the eighteenth century. After the oxidization of hematoxylin, the oxide hematoxylin forms. It is also a raw material for natural hair dye. The solvents, stall compounds, surface active agent, etc. can also be used as hair sols.

Source:http://www.cosprm.com