I found my eyebrow wax more painful than usual but as I am quite sensitive I thought nothing on it until an hour or so later when I got home and looked in the mirror. Both eyes were swollen up and red and one eye had a white blister where the wax had burnt my skin. Now days later the burnt eye is still a bit puffy has a nasty red mark and flaking skin. I've had eyebrow waxes at Skin & Tonic before and had no problems beyond the usual redness so unless they have changed their products I am fairly certain it was not an allergic reaction just a very poor wax that's left me looking like I've been in a fight! Skin & Tonic is very cheap but it shows and I won't risk going there again.