Yarrow, also known as Achillea millefolium, is a perennial flowering plant traditionally used as an herbal medicine, often in the form of an internal tincture[1]. Yarrow tincture is an alcohol extract with several potential internal uses, including reducing inflammation, aiding digestion, and promoting relaxation[2]. The dosage for yarrow tincture will vary depending on the individual and situation, but in general, 15-30 drops or ½ to 1 dropperful of tincture is used three times daily for chronic situations[3].
While there are some animal studies showing potential benefits of yarrow as an herbal medicine, there is still a lack of human research to support systematic claims[2]. Therefore, it is essential to exercise caution and consult with a healthcare professional before beginning to use Yarrow tincture internally or externally.