Differin is otherwise used to treat facial acne. It's a prescription medicine. Some people find it very irritaiting, the skin gets red until it adjusts. But I don't think that it's more dangerous than any other doctor prescribed medicines. I've used it for KP on my upper-arms, but it hasn't helped at all.

Differin cream right?? Its pretty harmless as far as i know. Look on the box it comes in and check the scheduling status-if its higher that 4(which i doubt) then you should be cautious

Start out by using it every other day- I love it- just like the fountain of youth but too expensive for KP use. I have acne too! I used it a few times on my legs and it did work for me but everyones is different!

I tried Differin and it didn't help me at all. Perhaps I wasn't as diligent with it as I should have been. But it said on the pharmacy printout that it can cause dry skin as a side effect... which didn't seem like a great idea for KP anyway.

i tried it and it didnt work for me, i am also from NZ and my derm recommended it...expensive waste of time..

I tried this about 9 years ago. I put it on at night and the next morning I looked like a red Racoon who sat 1 ft. from the sun. My face was so red I had to call out of work, I guess I had some bad reaction to it but I think the redness was gone in a week or so.

The cream works well for the KP on my forehead, but it is too expensive to use regularly at $120 a tube!