I bought this product off of an eBay seller. As an adult, it's still very frustrating that I suffer from acne. So, I have literally bought hundreds of products over the years to treat it. For this reason, and the fact that both my sons have bad acne, I have spent a lot of money online and in stores trying to find the best product. My sons and I both tried this out for over a month, and it did nothing for us. Well, it dried out my youngest sons blackheads, and helped get rid of a few of those, but that was about it. I have acne all over my back, in little tiny bumps, and it didn't change. Both my sons still had blotchy acne all over their faces, until we bought another product that helped. I think these may help others, but it didn't help us. Effectiveness It wasn't effective, at least it didn't work on my acne. There may be others that find it beneficial, so I would recommend trying it just to see if it works for you. Ease of Application Easy to use, just like you would normally use bar soap. Convenience Easy and convenient. You can buy it as a bar, or in liquid form in a bottle. Side Effects It only seemed to dry out my skin, and nothing else. Immediacy Didn't see any results from using this product.