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The Science Behind Hair Colouring

Hair colouring is a matter of chemistry which has now developed to a very common lifestyle for some. For a numbers of years now the hair colouring industry has been exceptionally profitable. The trade of at home hair dye kits alone is worth a projected £321million annually. Hair lightening / bleaching facts The bleaching process is used to lighten hair. This is done by the peroxide agent which normally has a yellow tint that reacts with the melanin in hair removing the colour. This is known as an irreversible chemical reaction, where the bleach dissolves the melanin molecule within your hair. At this point there is still melanin present in your hair, however the dissolved molecules are colourless.  Once your...

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