Cukes can have an internal temperature that is up to twenty degrees colder than it’s external temp. This veggie has been around for thousands of years, but only recently was it recognized as a helper in the salon. Controversy abounds around theories as to why cucumber slices remove bags from under the eye. Common knowledge says it’s the coolness, not a special chemical, that brings relief to fluid-filled skin. In fact, cucumbers are about 90% water.