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For thousands of years, it has enjoyed the reputation of forest frog oil, and women regard it as a treasure. They take it for a very different purpose from men. One is to keep a beautiful face, and the other is to breed strong offspring to accumulate physical strength. It is essential for women to take it as a nourishing food when they are in confinement. In the Qing dynasty, it became a royal tribute; Now, it is called "green soft gold" because of its strange nutrition and health care value.
The traditional method of oil extraction is to hang the wood frog on a board, dry it for 7 days to 10 days, and cut it open to get oil. China Rana chensinensis oil is lumpy and of good quality. 2. Slaughter the wood frog, dry it in the sun for 7- 10 days, cut it open to get oil, and make it into a loose block with slightly poor quality; Rana chensinensis oil is taken from the living body. Because the oviduct of Rana chensinensis is linear, it is taken from the living body, which will not cause secondary pollution. Moreover, the oil body is clean, has no impurities, has no odor, is practical and convenient, and is generally favored by the south, while the north prefers block oil.
Baidu encyclopedia-Rana oil