Hair coloring

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A hairdresser colors a client's hair.

Hair coloring or hair dyeing is changing the color of hair. Common reasons are to cover gray hair, to change to a color that a person likes better, and to return the hair to its normal color after it has been badly changed by hairdressing or sun bleaching. The 1661 book Eighteen Books of the Secrets of Art & Nature explained ways of coloring hair black, gold, green, red, yellow, and white .

Types of hair coloring

The four common types of hair coloring are permanent, demi-permanent (sometimes called deposit only), semi-permanent, and temporary.

Hair Coloring Media

• Louise-Adéone Drolling dite Madame Joubert - Portrait du général de Lafayette dans le parc du château de La Grange-Bléneau.jpg

  Lafayette in 1830, aged 73, with pitch-black hair (painting by Louise-Adéone Drölling).

• Hair with blonde highlights

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  Shelf with a great number of different hair colours, each having a colour code printed on the packaging, at a hairdresser in Germany

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  A person with their hair colored light blue and their beard colored dark blue

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  Actress Margot Robbie with bleached blond hair

• Couplers are chemical compounds that define the color of the hair dye. Shown here are three red couplers (A, B, C), two yellow-green couplers (D, E) and a blue coupler (F).

• Quinodiimine.png

  first reaction in typical hair dyes

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  second reaction in typical hair dying

Other websites

• How Stuff Works "How Hair Coloring Works"