Colourstart consists of an adhesive patch that contains two small, separate squares. One square contains a small amount of PPD (this is the positive ‘+’ part), the other contains no PPD (this is the negative ‘-‘ part) and is used for comparison only.
The patch is applied to an easily visible part of the arm at least 4 days before an appointment for hair colour. The patch is left on for at least 48 hours (2 days) and then removed. 48 hrs (2 days) later, the arm can be inspected for any sign of a reaction.
If there is any sign of redness, itching or inflammation on the site of the patch, this is an indication that you may be allergic to PPD. If this happens you should not use hair colorant. If you are unsure about what to do, or if you have a severe reaction, you should seek the advice of a pharmacist or doctor. Please see the Patient Information Leaflet (PIL).
Contact us now for help.
All the helpful information in one place. Clarity and advice around the purchasing and usage of the Colourstart pack.
Here you can find lots more useful information and advice on who should use Colourstart and how it should be used.
You can buy Colourstart from any participating Colourstart hair or beauty professional.
Before entering our site, please confirm whether you are a Consumer or a UK-based Hair Professional.
I am a Hair Professional based in the UK OR I am a Consumer
Colourstart Test 65mcg Cutaneous patch. Contains p-phenylenediamine (PPD). A screening test for allergy to hair colour (PPD). Always read the label.