Astringent
Astringent plants contain tannins that precipitate proteins, causing contraction and tightening of tissues. They help reduce secretions, discharge, and bleeding by constricting blood vessels and mucous membranes. The mechanism involves protein coagulation, which then forms a protective layer on the affected tissues, thereby aiding in wound healing and tissue repair. Astringents are used externally on the skin and mucous membranes for minor cuts, wounds, and skin irritations, and internally to treat diarrhoea, or any condition which calls for drying of secretions.
Examples of astringent herbs include raspberry leaf (Rubus idaeus), lady’s mantle (Alchemilla vulgaris), agrimony (Agrimonia eupatoria), shepherd’s purse (Capsella bursa-pastoris), witch hazel (Hamamelis virginiana) and yarrow (Achillea millefolium).
