At first, I did a patch test, and my skin got irritated, yet I still tried it out on my face. Actually, it was a pleasant surprise. My skin didn't have any problems with it. I used it on my nose, where I have the most blackheads. It's not a miracle but it does its job. This is similar to nose strips. The effect didn't remain long though it was a quick change.
I'm not a fan of peeling gels due to my sensitive skin, so I won't repurchase it. But I will use up the tub.
Somehow, the gel dried where it comes out.