This is my all-time favorite cleanser. I also have oily skin, and although the tube says it's for normal/dry skin, it is just perfect for me.

It cleanses the skin well and doesn't leave it tight or dry. This actually makes my skin LESS oily, because if your skin is overstripped, then it will produce MORE oil to compensate.
It is fragrance free, oil free, and soap free. If you're a female, it removes ALL makeup, even waterproof mascara!!
I've been using this cleanser for over a year now, and I have absolutely no plans on switching.
If you are no longer going to use the Proactiv cleanser, I suggest that you add something into your routine to help with the exfoliation (as Purpose does not contain the gentle scrubbies like the Proactiv does). You can try an AHA or BHA product. The best are from Alpha Hydrox (drugstore) or Paula's Choice (website only).
Good luck!

I hope you love it as much as I do!!