I've had acne problems throughout my teen years and now in my early 20's. I've used many different products, too. This product works on my skin, but it dries up my skin to the point where my severely itching my face throughout the day. I apply moisturizer after using the product and have the same problem. I continue to use the product thought, because it does work which is great. So I would recommend this product but not to those who have sensitive skin or dry skin. I recommend only using this product a couple times a week. I couldn't imagine using this product daily because of the harshness of the chemicals in the product. Effectiveness It works great! Just a little harsh on sensitive skin. Ease of Application This product will bleach your clothing, so be careful applying it to your face and washing it off. Side Effects It will dry your skin and cause itchy-ness. I recommend not using it daily to prevent skin irritation.