Herb Overview: Rhizoma Drynariae is a Chinese herb that can invigorate blood circulation and remove blood stasis, and is the dried rhizome of Quercus serrata, a plant in the family of Hydropsychiaceae.

Effects: Rhizoma Drynariae is used to heal wounds and relieve pain, tonify the kidneys and strengthen the bones; it is also used externally to eliminate wind and dispel blemishes. 

Usage: Rhizoma Drynariae has the effect of healing wounds and relieving pain, tonifying the kidneys and strengthening the bones, and eliminating wind and removing spots for external use. It is usually used as tablets for internal and external use.

Notes on Use: Rhizoma Drynariae is warm and dry, so it is not recommended for people with yin deficiency and fire, blood deficiency and wind dryness.