Acne is one of the problems I have, and it makes me very insecure about my skin, so I went to foschini and the skin care consultant suggestedbthat I buy this anti-blemish spot pen. I applied it onto the spots directly. It burned my skin and it was so painful and caused me a lot of discomfort. I think my skin is too sensitive for this product. What I can say is that even thought it burned , it did reduce the size of the pimples. So it does work really well, it's just that it's too strong for my skin.