Another thing I've noticed is that the faster you get it on an injury (cut, burn, bruise, etc) the faster it heals. If you don't put it on right away then it seems to take longer to heal. If I get a bruise and notice it right away and put it on, it will heal up in a couple days. If I don't get it on the bruise for a few days, then it will take much longer. I have been using it on my brown spots too and it takes a few months to fade, but it definitely gets rid of them eventually. And, oh yes, there is some bad stuff out there too so be careful where you get it.