Longrich Snake Oil is a traditional Chinese medicine that is made from the fats and oils extracted from the Chinese water snake. Chinese water-snake oil contains 20 percent eicosapentaenoic acid (EPA), one of the two types of omega-3 fatty acids most readily used by our bodies. Omega-3s are vital for human metabolism. Not only do they sooth inflammation in muscles and joints, but also, they can help “cognitive function and reduce blood pressure, cholesterol, and even depression.”