I have acne prone, oily skin. Initially the toner burnt my skin (for the first 4 or 5 uses), but with continued use, my skin built a resistance and wasn't so sensitive to it anymore. It's really helped reduce oiliness, and build-up on my skin.
I wouldn't recommend it to someone with dry skin, but rather to those with normal to oily skin. It's a really great product and is not as harsh as I expected it to be.