mary kay?

My boyfriend's little sister just became involved with Mary Kay Cosmetics and I dearly care about her. She's a very sweet, intelligent girl who tends to be a little naive. I've done some research and found the website pinktruth.com. Long story short, I am extremely worried about her. I understand that they do nothing illegal but that doesn't mean it's not immoral. She needs to get out asap. How do I approach this situation? I don't want to push her away and deeper into the pink fog. Please help.

Edit: I have been reading twox for a while now and have generally come to respect the advice given here. I have never been so disappointed. I thought I had found a community of sensible like-minded women but I only found a bunch of women willing to believe propaganda. All of the good things you hear about Mary Kay are from within the company. Check facts. Look beyond the silver lining. That's where the good stuff is. If a former consultant can tell me honestly that they loved every minute of their time with Mary Kay then I will relax. But I haven't found that. Also this is besides the issue. I want to know how I don't alienate my friend. Also: reading comprehension. It's a learned skill.

Edit: Seriously you need to work on reading skills. I never asked for opinions on Mary Kay. I asked what would be the best way to talk to my friend. There is a HUGE FUCKING DIFFERENCE! And solicitation =/= sales. On a side note, I have never hated stupid people more. Sorry for being such a negative nellie ladies.