For your safety, and in line with colour-product guidance, manufacturer instructions and our salon insurance requirements, a skin patch test is required before any colour service involving permanent or semi-permanent dye, including tints, highlights, balayage, colour correction and root touch-ups.
- Timing: the patch test must be carried out at the salon at least 48 hours before your colour appointment.
- New clients: if you are new to the salon and booking a colour service, please pop in for a free patch test before your appointment.
- Existing clients: a fresh patch test is required if you have not had colour with us in the last 6 months, or if you have had a recent reaction, illness, surgery, pregnancy, COVID-19 vaccination, or new medication.
- Henna and box dye: please disclose any previous use of henna, hair mascara or home box dyes during your consultation. These can react unpredictably with professional colour and may affect what we can safely do.
- If a valid patch test has not been carried out in time, we may need to postpone or refuse the colour service. A cancellation fee may apply if the booking is cancelled at the chair.
Patch testing does not guarantee that a reaction cannot occur. If you experience irritation, redness, swelling, itching or any unusual reaction after a patch test or colour service, please seek medical advice and contact the salon.
Salon & Contact Details
Leo & Simon Hair Salon (trading name of Leo Mancini)
4 High Street, Eton, Windsor, SL4 6AS
Phone: 01753 832070
Email: info@leo-simon.co.uk
Last updated: May 2026.