How can I get my rude step mom to back off?

Question

My step mom has joined a cosmetic company kind of like AVON, she's a sales rep and sales make-up and beauty creams for acne, scars, wrinkles, etc. Well she's been doing it for over a year now and whenever we have to get together for family occasions (christmas, thanksgiving, birthdays, etc.) she starts in on my sister and I. Asking us what products we are using and why we should go with her company....she even goes as far as to point out our pimples and acne scars and well its embarrasing! Im there to enjoy a holiday gathering, not talk about my flaws! So this has been going on for a year now and I'm fed up. How can I get her to mind her own business, while remaining polite?

Answer 1

Next time she starts in on you say " Wow... this is how it feels to be on one of the gossip magazines where they need to everything like you! I must be famous!" ... She should catch the drift, if not, ask your dad to speak with her and tell him that if she doesn't stop, then you're going to have to limit the time you come over.  

Answer 2

Say "Thank you but I'm happy with how I look."