Hair colouring is the practice of changing the colour of hair. The main reasons for this practice are cosmetic (e.g., to cover grey hair, to change to a colour regarded as more fashionable or desirable, or to restore the original hair colour after it has been discoloured by hairdressing processes or sun bleaching). Hair dyeing, which is an ancient art, involves treatment of the hair with various chemical compounds. Today, hair colouring is immensely popular. Chemicals used in hair dye depend on the type of hair colour desired. You can get natural colorants, temporary hair colour and permanent. Bleach and peroxides are two of the chemicals
Jul 15th, 2013
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