Snow clam oil, also known as snow clam paste and wood frog oil, is the oviduct of the female Northeast wood frog.

It is called wood frog oil in the Northeast area, and it is called snow clam oil and snow clam paste in Guangdong and Hong Kong. It can improve immunity, beautify the skin, and nourish the kidneys and essence. Rana oil contains 11.82% moisture, 54.93% crude protein, 4.36% crude fat, 4.88% crude ash powder, and 23.21% nitrogen-free extract. The total carbohydrate content in Rana oil is 9.65%.

It is called "Shanha" in "Compendium of Materia Medica". It is mainly produced in the Changbai Mountains in Northeast my country and is a unique frog species in the Changbai Mountains. The dried substance of the oviduct of the female frog is called "Snow Clam Oil". It has the effect of replenishing deficiency, nourishing the lungs, and strengthening the body. Since ancient times, it has been praised by the people as an excellent nourishing product that is as famous as the Three Treasures of Northeast China. It has been widely used by people for thousands of years, and its pharmacological effects have long been known.