Continuing my quest to collect everything in this line as I have liked everything so much! I am lucky not to have acne issues, I only get occasional small hormone related blemishes and this corrector makes them disappear overnight. I recently had a bad episode of cystic acne caused by a foundation that didn't agree with my skin. It was the first real acne I've had in my life and I used this corrector on the blemishes and it of course didn't make them vanish like it does with my small blemishes. I do think it helped reduce the redness and swelling of the blemishes at least. All in all this is a good corrector for everyday blemishes, but don't expect it to cure severe acne.