Crisco is a brand of shortening which is the first shortening made of entirely vegetable oil. It is very popular in the United States. Now it refers to all shortenings. There are some people recommed to use the crisco for reduce dark circles under eyes. It indeed could be helpful to some extent. Because dehydration might lead to bags under eyes and make the dark circles more obvious, the crisco could moisturize the skin around eyes, which is especially useful for people with dry skin. If it is made of soybean oil, it can flash your skin. Applying the crisco with some tender massage, the effect would be better. Massage can help blood flow and circulation around eyes, help skin absorb nutritions and moisture, which can effectively reduce the discoloration under eyes. Some people recommond tea bag compress or cucumber slice mask, which works in the same way, through hydrateing the skin.