love the formulation but i'm not sure how to use it best. it dries down a bit sticky so i don't fancy using it as a sleeping mask. however it doesn't do very much as a wash-off mask - it's somewhat soothing (but for the price, 'somewhat soothing' is not quite worth it). i have sensitive dry-combo skin so maybe that's the problem? it might work better for someone with oilier/normal skin. also, when I use it on slightly sensitised skin, it does sting a my face a little.