Black Friday brings with it hard-to-resist deals that allow you to snag gifts for practically everyone on your shopping list, but don’t forget to treat yourself too. If you’ve been meaning to try a cosmetic treatment—whether it’s lip fillers or a body-sculpting series—now might just be the perfect time to do so.

However, three RealSelf Verified doctors say there are some critical questions to ask before locking in a procedure on Black Friday.