Although TIGI 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.

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.

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 dabbing a small amount of the colour with developer behind your ear or on your inner elbow and leaving it to dry. You will be asked to leave the colour for at least 24-48 hours. If you develop any irritation or feel unwell after the patch test, please let your salon know ASAP.