Yarrow is a special herb that has a balancing energy, amazingly it can both staunch blood flow and encourage blood circulation. It is well known as an antimicrobial, and also as an anodyne, helping to lessen pain. It is an astringent (drying) herb, it is also a bitter which can stimulate digestion. To use yarrow most effectively, do not take continuously as you do with the majority of tinctures, but use as needed only. 1 oz.