A scam! Be aware! I booked this without having an “ up to date patch test”. Once I got to the salon they cancelled my booking, they lied they will offer a refund and they did not. Treatwell mentioned that they will reschedule my booking, but in the end the salon refused. I have been too many salons in London, but I have never been treated like this. Just appalling! There are many good salons out there, spend your money elsewhere.