Encara no tenim significats per a "astringent action".
1The tea has an astringent action and the tannin contained in the tea leaves is very effective.
2The yerba rheuma has an astringent action and contracts the tissues, relieving the inflammation of the skin.
3Tea limits perspiration, perhaps, by the astringent action of the tannin which it contains,-ofwhich more hereafter.
4The salt will stop the bleeding by its astringent action and mixed with flour forms a coating over the cut.
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