We Skyherb extracted from the mountains of fresh bamboo leaves, according to GMP standards of effective extraction, made of bamboo leaves extract. Clinical trials prove Bamboo leaves flavones have a good biological effects. Product Description: Resources: Bambusa vulgaris Skyherb can provide the specifications of bamboo extract as follow: Flavones: 20%, 40% Please feel free to contact us for more details: sales[at]skyherb dot cn