What kind of bamboo is the best?

Tender bamboo. After the outer wall of tender bamboo is scraped off, it is blue bamboo shavings. The efficacy of this green bamboo shavings (also called fresh bamboo shavings) is better than that of yellow-white bamboo shavings (raw bamboo shavings) scraped off the inner wall and dried in the sun. Bamboo shavings are commonly used Chinese herbal medicines, and they are the middle layers in the stems of Bambusa bambusa, Bambusa bambusa and Bambusa gigantea.