Hair coloring
Hair Coloring
Hair coloring or hair dyeing is the practice of changing the color of hair. The main reasons for this practice are cosmetic: to cover gray or white hair, to change to a color regarded as more fashionable or desirable, or to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching.
Pronunciation
Hair Coloring: /hɛər ˈkʌlərɪŋ/
Etymology
The term "hair coloring" is derived from the English words "hair", which comes from the Old English hǣr, and "coloring", which comes from the Old English clorian.
Related Terms
- Hair Bleaching: The process of lightening the color of the hair, usually by removing the color in an irreversible chemical reaction.
- Hair Tinting: A process that involves applying a semi-permanent color to the hair.
- Hair Highlights: A process where sections of hair are treated with lighteners, to create strands of lighter color.
- Hair Lowlighting: The process of darkening specific strands of hair by applying a darker color.
- Hair Glossing: A hair treatment that uses a semi-permanent color to add shine and tone to the hair.
History
Hair coloring has been used since ancient times. In ancient Rome, hair coloring was used by women to enhance their appearance. The Romans used natural substances such as henna, saffron, and indigo to color their hair. In the 19th century, the first synthetic hair dyes were developed.
Types of Hair Coloring
There are several types of hair coloring techniques and products, including permanent, semi-permanent, demi-permanent, and temporary hair color. Each type of hair color has its own advantages and disadvantages, and the choice of hair color depends on the desired effect and the individual's hair type.
Risks and Precautions
Hair coloring can cause skin irritation and allergic reactions, and prolonged use can damage the hair. Therefore, it is important to follow the instructions on the hair color product and to perform a patch test before applying the hair color.
External links
- Medical encyclopedia article on Hair coloring
- Wikipedia's article - Hair coloring
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