METHOD OF COLOURING HAIR FIBRES

METHOD OF COLOURING HAIR FIBRES

Hair colourant formulations fall into three main categories designated permanent, semi-permanent and temporary. Permanent hair colourant formulations are oxidative dye systems and generally contain paraphenylene diamine (PPD) and resorcinol, both of which have been shown to cause sensitisation and m...

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Hauptverfasser: HUNTER KARL JOHN, REDFERN SALLY PAMELA, GANGULI SHOVAN, KOEK JEAN HYPOLITES, CASEY JOHN, BHOGAL RANJIT KAUR
Format: Patent
Sprache:eng
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HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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creator HUNTER KARL JOHN
REDFERN SALLY PAMELA
GANGULI SHOVAN
KOEK JEAN HYPOLITES
CASEY JOHN
BHOGAL RANJIT KAUR
description Hair colourant formulations fall into three main categories designated permanent, semi-permanent and temporary. Permanent hair colourant formulations are oxidative dye systems and generally contain paraphenylene diamine (PPD) and resorcinol, both of which have been shown to cause sensitisation and mutagenicity. Furthermore, severe oxidising conditions are required which in themselves cause skin irritation and sensitization as well as hair fibre damage. The inventive method addresses the aforementioned disadvantages by providing a method of colouring hair fibres, the method comprising the step of applying a hair colour composition, the hair colour composition comprising: (a) (+)-Catechin, (-)-catechin, (+)-epicatechin, (-)-epicatechin or mixtures thereof; (b) A hydrogen peroxide generator or hydrogen peroxide; and (c) A peroxidase and; wherein the composition has a pH of 4.5 to 7.0, preferably less than or equal to 6.0.
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subjects HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
title METHOD OF COLOURING HAIR FIBRES
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