I love this mask! This is a biocellulose mask with gentle ingredients such as chamomile, aloe, ginseng, and a bunch of other plant extracts for calm, soothed skin. It also contains niacinamide for brightening. I was incredibly impressed with how easy this mask was to work with; it was packaged between 2 plastic sheets and adhered very well without slipping or sliding around my face. I was able to keep it on for over 30 minutes, and my face felt plump, hydrated, and a little brighter. Used in combination with other brightening products, I think this mask could really help make skin look more radiant and glowy. Is it worth the $7 that Sephora sells it for? Eh. I think there are less expensive brightening masks out there that can do what this one does, but the effects were noticeable and my skin does look radiant and soft. Possible repurchase, if I can find it on sale.