What is that green mask that you always see women wearing in movies and TV shows?

It's like a joke that a women will be in a pink bathrobe with her hair in a pony tail and a green mask on. What is that? It looks like guacamole.What is that green mask that you always see women wearing in movies and TV shows?
Its just a face mask, its not a certain kind, just go to the store and find a mud mask or something and it might be greenWhat is that green mask that you always see women wearing in movies and TV shows?
sometimes it is guacamole but they call it avacado face creme or something like that .

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