I have found that Neutrogena makes great products for people that suffer from acne problems. This is one of the best products on the market to help when you feel a pimple starting to come on. I seem to get the type of acne that forms under the skin, becomes very read and really hurts. It not like the type that you can pop and feel some relief, but the ones that really hurt. I simply wash my face, and apply a small drop of this treatment on the pimple a few times a day and can tell the difference. The pimple dries out much faster and is not as painful at all. I keep this product in my medicine cabinet at all times, and a little really does go a long way. It is more expensive than other drug store brands, but really works and is worth the extra money. Effectiveness I can tell that this product works to dry out pimples and not make them as noticeable and red. Ease of Application This gel is very easy to apply, simply a small dab on the pimple is all you need. Side Effects I have never had any redness or irritation from this product.