Hair highlighting/lowlighting is changing a person’s hair color, using lightener or haircolor to lift the level or brightness of hair strands. Hair colorants primarily come in to different forms: oxidative (permanent) and non-oxidative (semi-permanent and temporary).Permanent hair dyes bleach and add a new color to hair through the penetration of smaller dye precursors into the cortex and subsequent oxidation. There are four basic types of highlights: foil highlights, hair painting, frosting, and chunking. Highlights can be any color, as long as it is a lighter level than the surrounding hair. Hair lightened with bleach or permanent color will be permanent until new growth begins to show. Highlighted hair can make the hair appear fuller. Therefore, it is sometimes recommended for people with thin and fine hair.
Basic foil highlighting
Foil highlighting is the process of using foil to some strands of hair which will be lightened from particular sections of hair which will remain its natural color. The process is done by applying lightener to the hair that has been woven and separated using an applicator brush. The foil is then folded to protect the hair and surrounding area during the processing time, which is the amount of time required to achieve the desired results. In highlighting hair, hydrogen peroxide mixed with pigment is used to change the color of the strand.
This process is also used in applying lowlights to the hair; dyes are used to create strands of hair that are darker than the natural color.