海玉竹是一味中药，属黄精的一种，具清热、养阴、生津、润燥、润肺的作用，这些与普通的玉竹功效大致相同，不过海玉竹还能调和人体气血运行，亦能降血脂和血压，而且味道较香无酸味，因此售价上要比玉竹稍贵。
Hai Zhu is a kind of Traditional Chinese medicine, belongs to the yellow essence, has the function of clearing heat, nourishing Yin, producing saliva, moistening dryness and moistening lung, these functions are roughly the same as the ordinary jade bamboo, but the sea jade bamboo can also harmonize the human body's qi and blood circulation, can also reduce blood fat and blood pressure, and the taste is sweet and acidless, so the price is slightly more expensive than the jade bamboo.