- Yarrow (Achillea millefolium) has a long history as an herbal remedy applied to the skin for wounds, cuts, and abrasions. The genus name Achillea is derived from the mythical Greek character, Achilles, who reportedly carried it with his army to treat battle wounds. Dried yarrow stalks are used as a randomizing agent in I Ching divination.
- Currently, there are no high-quality trials available investigating yarrow. Although a laboratory study demonstrated yarrow's antibacterial effects, one poor-quality study using an herbal combination of yarrow, juniper, and nettle did not find any benefit on plaque or gingivitis inhibition.