Hair Coloring and its Types
Description:
To hide grey or white hair or to change into a more fashionable or beautiful hue hair coloration often known as hair dyeing is the process that is often being used, but to restore the original hair color after hairdressing or sun bleaching has harmed it. The four most common types are permanent, demi-permanent, semi-permanent, and temporary.
Permanent:
Permanent hair color typically contains ammonia and must be mixed with a developer or oxidizing agent to provide a permanent change in hair color. Ammonia is used in permanent hair color to open the cuticle layer, allowing the developer and colorants to permeate the cortex at the same time. The oxidizing agent (developer) is available in a variety of sizes. The natural color lifts up by using the larger the developer volume. Someone with lighter hair who wants to go darker doesn’t need a higher developer but the one with darker hair color who wants to go lighter needs a higher developer. Depending on how much color change you want, permanent hair coloring might take anywhere from 30 to 45 minutes.
2. Demi-permanent:
Demi-permanent hair color is a hair color that contains an alkaline ingredient other than ammonia and has a lower concentration of hydrogen peroxide than permanent hair color, despite the fact that it is always applied with a developer. Because the alkaline agent is less successful than ammonia at destroying the natural pigment of the hair, these products do not lighten the color of the hair during dyeing. As a reason, they can't make hair lighter than it was before dyeing it, despite the fact that they're less damaging to hair than their permanent cousin. Demi-permanent is used to hide grey hair significantly better than semi-permanent, but not as well as permanents.
Demi-permanent has various advantages in comparison to permanent color. As natural hair color is not lifted, the resulting color is less homogeneous than a permanent, making it appear more natural, they are safer but washed out over time, making root regrowth less self-evident and color alter less demanding. Darker colors may remain longer than indicated on the holder, in spite of the reality that demi-permanent hair colors are not changeless.
3. Semi-permanent:
As a developer and ammonia is not used in semi-permanent so it is less harmful to hair strands. Chemicals with a lower molecular weight are used to dye hair in temporary hair color than semi-permanent hair color dyes. Only the cuticle layer of the hair shaft may be penetrated by these colors. This color will be washed usually 4-8 shampoos. Semi-permanents may still include phenylenediamine, a known carcinogen, or other similar dyes. Light hair can be got with semi-permanent.
4. Temporary Color:
Temporary hair color comes in a variety of forms, including rinses, shampoos, gels, sprays, and foams. A more colorful and brighter color than semi-permanent or permanent hair color. Halloween and costume parties are the occasions where these are commonly used. These pigments have high molecular weight so that they can’t penetrate into the cuticle layer. Colour particles attach to the surface of the hair shaft and are easily removed with a single shampooing. If the hair is dry or damaged so the hair color will last for a long time, allowing the pigment to migrate to the inside of the hair shaft.
