This is one of the best spot treatment I have used. It is very effective and my acne prone, sensitive skin tolerates it really well. Blemishes heal more quickly and do not leave such strong marks. I used it for about 6 months, and really noticed a difference while I was using it. Also, my skin has been getting drier over the last few years (I am 30) and despite being merciless with spots, this porduct doesn’t dry the skin at all.