This is a beautiful exfoliating mask. I find that applying less is more, and that upon application there is a sort of burning sting, but that once it sets, this stops. Make sure to gently remove the mask with a soft face washer, otherwise if you drag it across your skin, you may damage it as the mask really is chock full of exfoliating beads. I wouldn't say this is for sensitive skin, or is hydrating- the Glamglow ThirstyMud is good as a hydrating and gentle mask, which can be left on overnight.