Expires 4 months after purchase. Limit 1 per person, may buy 2 additional as gifts. Booking required at least 48 hours in advance, please call 02920223300; quote Groupon code. Present Groupon on arrival. 48-hour cancellation policy. Excludes bank holidays. New customers only. Must be 16 or older. Hair longer than shoulder length or multiple colours will incur a surcharge starting from £10, payable to merchant directly; for further details please contact the merchant directly. Patch test is included and required at least 48 hours prior to treatment. Treatment will not be done without the patch test. Verified using our merchant's website on 23 Aug 2017.