There are many words used to describe herbs and their actions on the body. The following is a guide to understanding these unique terms.
Styptic
a substance that stops external bleeding (usually an astringent).
Tannin
a complex mixture of polyphenols; gives a color reaction to iron-containing substances.
Terpene
any of several isomeric hydrocarbons; most volatile oils consist primarily of terpenes.
Tincture
a solution prepared by steeping or soaking (maceration) plant materials in alcohol and water.
Vulnerary
a substance used in the treatment or healing of wounds.
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