Hair colorants and haircare

Hair colorants and haircare

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HomeHair colorants and haircare

Read below this section to learn more about hair colorants and haircare generally, the research carried out in the Colour with Confidence page and information about allergies to these products.

Black henna temporary tattoos

So-called 'black henna' temporary tattoos can cause painful short and long-term damage to skin and may cause you to develop an allergy which means you can never colour your hair again. You can learn much on the subject including seeing real life examples of people's reactions to 'black henna'.

Brazilian hair straighteners

"Brazilian" hair straightening products will be illegal if they contain formaldehyde.  Formaldehyde was banned in cosmetic products in 2019 by the strict EU cosmetic safety laws. This page offers advice and an informative guidance document on this interesting topic which is seldom mentioned.

Colour Well Colour Wise

In June 2012 the European trade association, Cosmetics Europe, launched a new public information website called "Colour Well Colour Wise". Colour Well Colour Wise has clear and simple information about how to colour your hair safely.

Colour with confidence

Many people don't know that allergies build-up over time, so they don't realise how important it is to carry out an Allergy Alert Test every time they colour their hair, 48 hours in advance, even if they have used a product before. This page will teach you about the allergy alert test and how to colour your hair without any worry.

Facts about PPD and hair colorants

You may have read about a particular hair dye used in hair colorants called PPD (paraphenylenediamine or p-phenylenediamine). The use of PPD is strictly regulated in the cosmetics safety legislation. This page explains this chemical and its uses with plenty of informative content and a PPD based factsheet.

Hair colorants and allergy

The majority of hair colorant users will never develop an allergy because it is not in their genes to be susceptible; it's all in the genes. Despite adverse reactions to hair colorants being exceedingly rare, it is important to make sure you use your hair colorant safely to avoid an adverse reaction. Anyone preparing to dye their hair should read this page as it will teach you all about the allergy alert test including how to do it and what to do if you react to the test.

Hair dye and colorant safety

Hair colorants are one of the most thoroughly studied consumer products on the market and their safety is supported by a wealth of scientific research. As with any other cosmetic product, European cosmetic safety laws require that they must not cause harm to human health.

How do hair colorants work?

Many of us love to change the way we look by changing our hair style and by altering the colour of our hair. But how much do we know about the process of colouring hair and the way it works? On this page you will learn not only about hair colorants but why our hair is naturally pigmented.

How do shampoos work?

Some of us wash our hair every single day, others of us less frequently, but how much do we know about what exactly happens when we use shampoo? Do we know, for instance, what a shampoo is designed to do? 


Cosmetics can have a role to play in helping people to feel good by taking care of their appearance. When it comes to hair, whether blonde, brunette, sandy or silver, changing our hair colour and style can help us express our mood and personality. Four out of every 10 women in the UK use hair colorants as part of their personal beauty regime.

In this section you can discover the facts about how hair colorants and shampoos work - and learn about the importance of Allergy Alert Tests and how they must be carried out at home and in the salon.

Colour With Confidence

Research carried out in 2012 showed that 13.7 million women would colour their hair in the run-up to the festive season, but more than three quarters wouldn't carry out an Allergy Alert Test.

To address this, the CTPA has joined forces with National Hairdressers' Federation (NHF), which represents UK salon owners, to launch the Colour With Confidence campaign, to highlight the importance of carrying out an Allergy Alert Test 48 hours before every colour - whether at home or the salon.

Visit the Colour With Confidence page for more information and easy style tips in a series of how-to videos from President of the NHF and celebrity hair stylist, Mark Coray - and a host of hair tips from other top celebrity stylists.

Should I be worried about allergy?

Millions of people across the world colour their hair every year. While the overwhelming majority experience no problems at all, it is known that a small number of people do have the potential to be allergic to some ingredients in hair colorants. It is really important to follow manufacturer instructions closely when colouring the hair, making sure to carry out an Allergy Alert Test 48 hours before each colouring.
Hair colorants are one of the most thoroughly studied consumer products on the market and their safety is supported by a wealth of scientific research. As with any other cosmetic product, European cosmetic safety laws require that they must not cause harm to human health.

Read more about the safety of hair colorants, the common hair dye 'PPD' and a European collaboration for a public information website called 'Colour Well, Colour Wise'. This website has clear and simple information about how to colour your hair safely and is divided into two main areas: 'Colour well - Tips & tricks about colouring your hair' and 'Colour Wise - Be Safe'