Can I still put on a sheet mask if I accidentally put moisturizer first?

Your moisturizer will prevent the serum in your sheet mask to penetrate your skin, so that would be a waste.

since the moisturizer is most likely thicker than the essence from the mask the mask should be used first or the ingredients won’t penetrate the layer of moisturizer and reach your skin

it won’t do much, save it for next day!

i’m thinking that would just be a waste of a mask, save it for another day !

yes it is still ok to use a sheet mask after moisturizer. I actually was on a live with a dermatologist and esthetician and they said it was actually their favorite way of doing it. it won’t hurt anything