This mask is made of unbleached cotton and contains a good amount of essence that can be used in the neck also. I feel like it only brightens a little bit for one use but I think you need to use it several times in order to see a good brightening effect. It does not fit my face very well but obviously, you can't get a 'one size fits all' for a sheet mask. It is pretty moisturising and you need to remember not to leave it on for too long and to seal it in with an occlusive moisturiser on top. Having exfoliated skin will help it work better too.