The Secret of Hair Color Cosmetics Revealed!

Hair dyeing seems to have become a necessary ritual during major festivals.

Sweet brown, milk tea coffee, cherry red, New York gray, natural black...

Do you want to get a fashionable new hair color, shake your hair, and be the prettiest kid on the street?

Nowadays, hair dyeing is no longer limited to barber shops. As long as you buy a box of hair dye online, everyone can be your own teacher Tony.

For middle-aged and elderly people,

Hair dyeing is to cover up the gray hair.

Make yourself look younger;

Young people are more interested in pursuing fashion and beauty.

In our country, hair dye cosmetics are special cosmetics with high safety risks and can only be produced and imported after being registered by the State Food and Drug Administration. Common hair dye cosmetics on the market generally use dye precursors and coupling agents under the action of strong oxidants to produce pigment macromolecules that can be fixed in the hair through oxidative polymerization, thereby changing the hair color. The main functional ingredient of hair dye cosmetics is hair dye, which is subject to stricter management in my country. In the "Safety and Technical Specifications for Cosmetics", there are now more than 70 kinds of approved hair dyes such as resorcinol, with clear usage restrictions.

Hair dye type

Temporary hair dyes: Hair dyes mainly use dyes that have low affinity with hair, such as lemon yellow, fluorescent green, rose red, etc., made into sprays, gels, hair wax, etc. This kind of hair dye temporarily adheres to the surface of the hair and is difficult to penetrate into the surface of the hair. If you want to remove the color, just wash it. It is mainly used in photography modeling, wedding makeup, filming and entertainment and other scenes.

Semi-permanent hair dye: It uses some alkaline and disperse dyes with small molecules and strong affinity to the hair. It penetrates into the hair by contacting the hair part, so that the color can be retained for several days and can withstand several rinses before fading away.

Permanent hair dye: Common ones on the market are usually divided into AB dosage forms. The principle of action is that the intermediate and coupling agent penetrate into the hair in the form of small molecules. Under the action of alkali and hydrogen peroxide, a series of oxidation and coupling reactions occur to form Relatively large molecules are stuck in the hair and cannot come out, so they can be stored for a relatively long period of time. Among them, PPD (p-phenylenediamine) as the intermediate and RCN (resorcinol) as the coupling agent are the most widely used.

Hair dyes can be divided into two main categories:

[1] Natural dyes, most of which are plant-based, such as alizarin, indigo, etc.;

[2] Synthetic dyes are mainly chemically processed from fractionated products of coal tar and petroleum processing products. They are also called aniline dyes.

Purely natural plant hair dyes have fewer varieties, are more expensive, have single colors, and are not easy to color. Many of the plant-based hair dyes on the market only add certain plant ingredients and are not purely natural hair dyes. Most hair dyes contain heavy metals, phenylenediamines, aminophenols, active agents, oxidants and other chemical substances in different concentrations.

How to produce safe hair dye? Please visit the relevant equipment website: www.chinacosmeticmixer.com