Tannins

Tannins: Plant-Based Tannins

Tannins (from French: tanin) are plant-based tannins. They are a derived group designation for various acids and are obtained from the galls of various plants. Galls are spherical growths ("gall apples") that arise as a reaction of the plants due to external influences. The tannin produced from them is a mixture of plant substances.

Due to their chemical structure, tannins can form stable, network-like compounds with proteins. On the skin and sweat glands, this then has a constricting (astringent) effect. Sweat production can thus be reduced.