Jinenjo (Japanese wild yam)

Japanese wild yams used to be considered very rare, as they were only harvested in the mountains and not produced in farms. After long years of research and trials, Masada Natural Farm in Yanai City invented a special device named “Clever Pipe”, which enabled growing wild yam for the first time in the world, paving a way for other farmers to grow them. This is why Yanai is now called “the place of origin of wild-yam farming”. The Jinenjo wild yam is also scientifically proven to contain a substance which increases DHEA (Dehydroepiandrosterone), a male hormone which is good for revitalizing, anti-aging and improving hormone balance.