Colour Start

Why Allergy Testing Matters

When it comes to hair colour, ensuring your safety is our top priority. Hair dyes contain a common ingredient called Paraphenylenediamine (PPD), which can cause allergic reactions in some individuals. Reactions to PPD can range from mild irritation to severe swelling and, in rare cases, life-threatening responses. Even if you have coloured your hair before without issues, sensitivities can develop over time, making allergy testing an essential step before any colour service.

Traditional patch tests require a visit to the salon at least 48 hours before your appointment. However, we now offer an easier, more flexible alternative: Colourstart® Allergy Test.

What is Colourstart®?

Colourstart is an MHRA-approved allergy screening test that provides a reliable way to check for sensitivities to hair colour. Unlike traditional patch testing, which is brand-specific and must be repeated when switching colour lines, Colourstart applies to all hair colour brands. This means once you’ve taken the test, you won’t need to repeat it every time you change your shade or if we use a different product range to achieve your desired look.

Many salons only carry one colour brand because regular patch testing across multiple ranges is impractical. By using Colourstart, we have the freedom to choose the best products for your specific needs, whether it’s for grey blending, vibrant transformations, or custom formulations.

How It Works

✔ Order your Colourstart® Allergy Test for £15.

✔ Apply the test at home—just like a plaster!

✔ Your results are stored securely on the Colourstart Passport App.

✔ Before each colour appointment, simply complete a quick screening questionnaire to confirm your suitability.

✔ No need for repeated salon patch tests—Colourstart covers all brands we use.

This means more flexibility, fewer salon visits, and complete peace of mind when booking your colour services.

Order Your Colourstart® Test

For added convenience, Colourstart can be ordered for home delivery. Learn more and purchase your test here.