HAIRPRINT is different to hair dyes. In conventional colouring, the chemical known as phenylenediamine (PPD) is the key covering and colouring grey hair.
Hair dyes work by opening up both the cuticle and the cortex of the hair using ammonia or MEA, removing the natural colour (pigment) that is there and placing a new colour or rather a coal tar dye, in its place. Couplers, oxidizers and harsh chemicals are also present in conventional dyes.
HAIRPRINT, however, replaces the missing pigment common to darker hair colours (light brown to black hair)
During the colour restoration treatment:
- New eumelanin is synthesised within the cortex structure of the hair restoring its natural colour.
- This process is called melanogenesis and occurs regularly in the human body.
- HAIRPRINT creates the precursors of eumelanin, relatively small monomers that penetrate the cuticle layer into the cortex.
- Forming eumelanin pigments that polymerise becoming too large to be washed or abraded out.
Check out these videos with the creator of HAIRPRINT Dr John Warner as he explains the concept and product further.