Hi KindHinge!

I have used the cleanser by itself without the regimen. It doesn't break me out personally, but I tend to feel a little more dried out after using it than some other cleansers like Cetaphil gentle cleanser & Cerave foaming cleanser.

I would try looking at the ingredient list here on cosDNA:
http://www.cosdna.com/eng/cosmetic_fc5624353.html

And compare it against other cleansers you've used that you have liked in the past and go from there. Best of luck!