http://www.newsweek.com/there-could-be-sharks-your-lipstick-cosmetic-companies-use-shark-liver-oil-1040591

The face cream that keeps your skin hydrated could have a surprising ingredient.

Oil found in the livers of sharks help the animals to regulate their buoyancy, but in consumer products, this oil—known also as squalene—is used in everything from lip balm to Omega-3 dietary supplements, Gavin Naylor, director of the Florida Program for Shark Research, told Newsweek.