I used to suffer badly with acne and was always looking for something that was quick and effective, but something I could also put makeup over. This product was exactly that, worked practically overnight, and if I'm careful I can put makeup over it as well so that the spot wasn't so obvious.
HOWEVER, it's best to use on only one single spot at a time - I had a little patch of blemishes and tried it on the patch of skin rather than on the separate spots and it left a red mark on my skin there and the skin started flaking - it's very strong! So make sure that you only use a teeny tiny bit on the spot itself!! Best used at night when you've done your usual cleansing routine and left on over night..