I asked the lady. This time I saw previous "hairs" in the wax before it was applied. I know, being a scientist, that if they heat it well enough it should be okay, but personally after the spotting of hair I just find it disgusting. My Argentina Amiga told me to look for disposable wax or disponer. She told me it would cost more, but I am willing to pay. Elia is right in Chicago it cost about $100 here it is around $10p.