Hair colouring is the practice of changing hair colour. The main reason for this is cosmetic to cover grey hair or white hair, change to a colour regarded as more fashionable, or restore the original hair colour after it has been discoloured by hairdressing processes or sun bleaching.

Types of Hair Colouring

Permanent Permanent hair colour generally contains ammonia and must be mixed with a developer or oxidising agent to permanently change hair colour. Demi-permanent Demi-permanent hair colour is a hair colour that contains an alkaline agent other than ammonia. While always used with a developer, the concentration of hydrogen peroxide in that developer may be lower than used with permanent hair colour. Subsequently, the alkaline agents used in demi-permanent colours are less effective in removing the natural pigment of hair than ammonia; these products offer no lightening of hair’s colour during dyeing.

Semi-permanent Semi-permanent hair colouring involves no developer or ammonia and is thus less damaging to hair strands.

Temporary Temporary hair colouring is available in numerous forms including rinses, shampoos, gels, sprays, and foams. Temporary hair colour is usually brighter and more vibrant than semi-permanent and permanent hair colour. It is most often used to colour hair for special occasions such as costume parties.

Alternative colour Alternative hair colouring is designed to create hair colours not typically found in nature. These are also referred to as “vivid colour” in the hairstyling industry.

(Loreal, Wella, Raga)