I've used targeted acne treatments for years and this one is not as effective as other ranges. I'm not sure if this boils down to the ingredients, but my experience with high level of tea tree used in products in the past is that it can sometimes cause further irritation to the blemish by overdrying the skin (which can make it susceptible to becoming further infected). So I erred on the side of caution with this due to past experience, so I didn't see much improvement in my inflammation.