What a miraculous sleeping mask! I never heard about Nightingale cosmetics, so it was a random peak. Before using the mask I thought it hardly can help: my skin was dull, irritated by Siberian winter temperatures and red. Yet, my skin immediately soaked it and felt calmed down right after the application. It did not felt greasy, though my skin is oily, and in the morning the skin was totally OK: not oily, not red, not irritated. I am happy the pack is 100ml, I will use it more often from now on. Now I am interested in trying all of the Nightingale products!