Arbonne touts its products as pure, safe, and beneficial. They do use a lot of natural ingredients, but know that they are not organic and include parabens.
I used to use the Nutrimin system. I have rosacea, so my skin is very sensitive and prone to get red very easily. When I did the one week trial, I saw a great reduction in the redness, so I bought the product. (I didn't get some of the anti-aging stuff since I'm only 28!) However, in a few weeks, the system stopped working for me. My redness came back, and I started breaking out very badly. I never had greasy skin or any problems with acne, but I think this night creme, since it is so heavy and greasy, had the unfortunate side effect of clogging my pores.
It is a very expensive product, and because of this, I would say if you have any problems with excess oil, do not use it! It may work if you have extremely dry skin, but I would not recommend it.