Hands down the best mask and acne treatment available. I use it as a mask, and it's great, but the true magic starts when you apply it to spots overnight. It tends to rub off slightly, so apply it wet and just a thin layer. The smell is too strong for me, but it's a small price to pay. You can't expect a good smell from a product based on Neem oil :-) It's almost impossible to apply with dry fingers or to a dry face, so you'll have to find your way. I just wet my fingers and then the hard clay smooths on easily. Definitely worth the trouble! I love the whole Uma range, but some products are not worth the money in my opinion (like Deeply Clarifying Solution) and can be substituted with cheaper, natural and equally good alternatives. But the mask is second to none!