This is just as good as expensive masks that I've seen advertised. This REALLY does foam as the name implies. I have very oily skin which causes me to have some blackheads. This product helps a lot. It's of course not a miracle product but it's a very good addition to a cleansing regimen. I see a lot of companies advertise that the foaming is the mask pulling the toxins from the body and the "light gray areas" are where it's pulling the most. Do not believe this. It's a simple chemical reaction that causes it to foam because one of the ingredients is carbonated water, just like what's in soda. Open a soda, it foams. Place the mask on your face, it foams. So don't let the expensive masks fool you into buying them. When using this product be sure to use a clean brush used to apply face masks or do what I did and use a clean foundation brush. If you use your fingers it will cause the product in the jar to foam. It's simple to use. Wash your face and apply the mask. Leave it on for 3-5 min and rinse off. A little goes a long way so I feel the jar will last a while. The product does tingle and at times feels itchy but it's very tolerable. Even with my oily skin the first time I used it, it did dry my skin a bit. So use some rose water, jojoba oil or oil free moisturizer after if needed. My skin was also a little red but went away in a couple of minutes. Weird thing is it only happened the first time I used it and not any other time. I highly recommend this product because not only does it do what it says, it's also fun to look at yourself in the mirror after it's done foaming. It's a real treat.Pros:Very affordableWorks as advertisedSkin is soft after useVery cleansingSimple to useCons:May irritate sensitive skinMay not be suitable for young childrenMay cause drying of skin, but easily remedied with lotion