It has not irritated my skin (likely due to the calamine) and it goes on well and is easy to take off, unlike some masks that take forever to wipe off.  I have used it 3-4 times so far and while I do not hate it, I cannot say that it is doing much to my active acne.  Of course, the results would not be immediate and I also have very minimal acne (a pimple here and there) so I may not be the best test subject for this product.  I have tried it after exfoliating with a comedone extractor and while it did not burn/irritate the skin, I did not find it as soothing as I had hoped it would be.  It didn't make things worse by any means, of course.  It just did not make much of the redness go away.  Once again, I have to give the product a chance by stating that it's not exactly the best of things to do a ton of extractions at once... I don't know of many creams/balms/masks that would totally soothe the skin after it experiences the stress of 30 minutes of extractions...  I will keep using the mask if I see flare-ups or after extractions because it doesn't make things worse and I cannot say for sure that it isn't helping.