Waxing at home - Best wax brand to buy?

Would you mind telling me in private what that salon was and where it is located? If it wasn't too long ago, I would suggest contacting that state's board of cosmetology and filing a complaint.
They should have offered you a questionnaire to fill out which DOES list accutane and other skin thinners. If you have taken it in the past 6 months they aren't allowed to perform any waxing on you whatsoever.