Hair coloring

From ArticleWorld

Hair coloring can be temporary, semi permanent, deposit only and permanent.

Use of hair color products

Most hair color products require a patch test to determine if the client is allergic to the product.

Other terms

Hair lightening is also referred to as decolorizing or bleaching. This process uses the diffusion of the natural or artificial color from the hair. It is essential to permanent hair color and hair color lighteners.

Highlighting can be temporary or permanent and is applied with a process that varies depending on the desired look (fine addition or chunky colors).

Types of processes

• Temporary

This process is ideal for those who don’t want long-term color change. For example, when they are dressing up or disguising themselves. This works because the pigment colors are large and because of this they don’t penetrate the cuticle and allow for the color to only coat the hair. It can typically be removed by shampooing.

• Semi permanent

This type of hair color is designed to last through several shampoos. Depending on how porous the hair is affects its ability to absorb moisture. The molecules of pigment are small enough that they can penetrate the hair partially and therefore stain the cuticle layer.

• Demipermanent

This styling process is designed to deposit color on the hair shaft without causing any lightening. The smaller molecules in this formula have temporary tinting properties and are able to penetrate the shaft.

• Permanent

This color is mixed with a developer so that it remains in the hair shaft until the growth of new hair. As hair grows out, roots develop where the new hair comes in at the natural color, therefore permanent color must be applied regularly, the frequency depending on the hair color. Typically it contains ammonia, oxidative tints and peroxide.