Although KEUNE products do not contain the ingredient PPD, they do contain similar dyes that can cause allergies. This means that a small but significant number of consumers will experience allergic reactions; some of which could be severe.

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This applies for all Colour brands to ensure all customers are safe.

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Patch testing is essential to ensure that the active ingredient within colour does not cause an allergic reaction. Patch testing is a procedure used by stylists and therapists before applying colour to the scalp or facial area. It is a simple and safe way of identifying whether the dye will cause an allergic reaction with the skin.

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Whilst it may be a little inconvenient to visit your salon 48 hours before your appointment, it is essential to ensure your safety. This usually involves applicating a small amount of  colour with a cotton bud behind your ear, or on your inner elbow and leaving it to dry. You will be asked to leave the colour on for at least 24-48 hours. If you develop any irritation or feel unwell after the patch test, please let your salon know ASAP.