I must say that I have used Pan O 10% 2 years ago and it worked really well, but then I stopped using it. However, just recently I have been experiencing some breakouts, but nothing major, so I used a mild cleanser and a little hope thinking it would eliminate the problem. Nonetheless, my problem did not go away. Now, here's the real kicker, I had a major breakout over the weekend (big, inflamed mushroom pimples) all over my face. The pimples were grotesque looking to say the least. Thereafter, I jumped in my Jeep and droved to the nearest Rite Aid store and bought a bar of Pan Oxyl 10%, and used it immediately when I got home, and used it twice before I went to bed, and placed a satin covering over my pillow to help absorb any oil. When I lifted my head up from the pillow and touched my face the next morning, I was estatic to feel the smoothness of my face. Then I walked into the bathroom and looked in the mirror - it was like magic - all the big inflamed mushroom pimples were gone!! I was so happy because I did not want to go to work looking looking like a stepped off the set of a creature double feature movie. This soap is not for every skin texture. If possible, start with the 5% and use it lightly and then work your way to the 10% bar.