I've had pretty bad acne since my early teens. My skin isn't sensitive at all, so I've never had a problem with any facial products. I was clearly excited about this purchase since I'd previously read about how good this company is. My excitement was soon deflated once I used it and my face began burning about 20 seconds into the application. I checked the ingredients and I'm not allergic to any of them, so I was pretty baffled. I wondered if thats how the product worked and continued to use it for about a week. Not so. Effectiveness After a weeks use, I noticed that my acne was a bit worse than it was before I started. I had redness that I didn't have before and it dried my skin up after each use. After using, I would have dry flakes of skin that were quite disgusting and annoying if I was on my way somewhere. Ease of Application The application process was pretty simple. Convenience If it didn't have the side effects, this would be a pretty great product. My skin did feel clean after using, but it also felt as if it was on fire. Thats the down side. Side Effects Redness, irritation, dry skin.