Ammonia on the hand acts as a catalyst once the lasting hair shade includes with hydrogen peroxide. Exactly like all alkaline products and services, ammonia supports breaking up the cuticle and enables the hair color to penetrate the hair cortex.
With respect to the volume of the substances in the dye, hair colors are categorized in to three main categories: short-term, semi-permanent and lasting dyes.
Short-term hair dyes are often applied when one is opting for special events such as for instance Halloween events and different Henna Cones. These colors are usually within fits in, sprays, foams, rinses and shampoos.
In most cases, the pigment contaminants in these colors are large and they can not enter the cuticle coating; the contaminants remain adherent to the hair base which can be often easily eliminated just with an individual shampooing.
Semi-permanent hair dyes coat the hair base and also modify the hair shade temporarily to different hues of red, orange, and pink. Once you use them, the dyes last for 6-10 washes and you do not have to mix them with other components.
The color particles of the colors are often small in proportions and they easily penetrate within the hair cuticles.
Permanent hair colors are used when you wish to get rid of the pigment of normal hair and replace it with different colors. The contaminants in the color are usually really small in proportions hence they easily enter the cuticle and as a result they provide about permanent modify in hair color. That is the greatest dye when you need to cover your gray hair.
These are the main dyes that you should use to color your hair. You should note that even though the colors are very efficient within their functioning, they could result to damage of hair. The dyes may also be allergic to your skin layer ergo making you really uneasy when you use them.
Because of this you should be careful and make certain that you always check the merchandise before using them.
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