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Encyclopedia > Astringent
A bottle of tannic acid, an astringent

Astringent medicines cause shrinkage of mucous membranes or exposed tissues and are often used internally to check discharge of blood serum or mucous secretions. This can happen with a sore throat, hemorrhages, diarrhea, or with peptic ulcers. Externally applied astringents, which cause mild coagulation of skin proteins, dry, harden, and protect the skin. Acne sufferers are often advised to avoid astringents, which are believed to worsen the clogging of pores (see Witch Hazel)[citation needed]. Astringents also help heal stretch marks and other scars[citation needed]. Mild astringent solutions are used in the relief of such minor skin irritations as those resulting from superficial cuts, allergies, insect bites, or fungal infections such as athlete's foot[citation needed]. Image File history File linksMetadata Download high resolution version (1944x2592, 875 KB) I, the creator of this work, hereby release it into the public domain. ... Image File history File linksMetadata Download high resolution version (1944x2592, 875 KB) I, the creator of this work, hereby release it into the public domain. ... The mucous membranes (or mucosae; singular: mucosa) are linings of mostly endodermal origin, covered in epithelium, and are involved in absorption and secretion. ... Blood plasma is a component of blood. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Types 5-7 on the Bristol Stool Chart are often associated with diarrhea Diarrhea (in American English) or diarrhoea (in British English) is a condition in which the sufferer has frequent watery, loose bowel movements (from the Greek word διάρροια; literally meaning through-flowing). Acute infectious diarrhea is a common cause... A benign gastric ulcer (from the antrum) of a gastrectomy specimen. ... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Beyond overall skin structure, refer below to: See-also. ... Witch hazel is an astringent produced from the leaves and bark of the North American shrub, Witch-hazel. ... Orders Subclass Apterygota Archaeognatha (bristletails) Thysanura (silverfish) Subclass Pterygota Infraclass Paleoptera (Probably paraphyletic) Ephemeroptera (mayflies) Odonata (dragonflies and damselflies) Infraclass Neoptera Superorder Exopterygota Grylloblattodea (ice-crawlers) Mantophasmatodea (gladiators) Plecoptera (stoneflies) Embioptera (webspinners) Zoraptera (angel insects) Dermaptera (earwigs) Orthoptera (grasshoppers, etc) Phasmatodea (stick insects) Blattodea (cockroaches) Isoptera (termites) Mantodea (mantids) Psocoptera... Athletes foot or tinea pedis[1] is a parasitic fungal infection of the epidermis of the foot. ...


Some common astringent agents include alum, oatmeal, yarrow, witch hazel, bayberry, very cold water, and rubbing alcohol. Astringent preparations include silver nitrate, zinc oxide, zinc sulfate, Burow's solution, tincture of benzoin, and vegetable substances such as tannic and gallic acids. Some metal salts and acids have also been used as astringents. A crystal of alum Alum, (IPA: ) (aluminium potassium sulfate,) in chemistry, is a term given to the crystallized double sulfates of the typical formula M+2SO4·M3+2(SO4)3·24H2O, where M+ is the sign of an alkali metal (lithium, sodium, potassium, rubidium, or caesium), and M3+ denotes one... In the United States and Canada, oatmeal means any crushed oats, rolled oats, or cut oats used in recipes such as oatmeal cookies. ... Binomial name Achillea millefolium L. Yarrow (Achillea millefolium) is a flowering plant in the family Asteraceae, native to the Northern Hemisphere. ... Witch hazel is an astringent produced from the leaves and bark of the North American shrub, Witch-hazel. ... Species About 35 species, including: Myrica adenophora Myrica californica - California Bayberry Myrica cerifera - Wax-myrtle Myrica esculenta Myrica faya - Faya Bayberry Myrica gale - Sweet Gale or Bog-myrtle Myrica hartwegii - Sierra Bayberry Myrica heterophylla Myrica holdrigeana Myrica inodora - Scentless Bayberry Myrica nana Myrica parvifolia Myrica pensylvanica - Candleberry Myrica pubescens Myrica... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... A bottle of rubbing alcohol Rubbing alcohol, U.S.P. / B.P. is a liquid prepared for topical application prepared from specially denatured alcohol and containing 68. ... R-phrases , S-phrases , , , , Flash point non-flammable Supplementary data page Structure and properties n, εr, etc. ... Zinc oxide is a chemical compound with formula ZnO. It is nearly insoluble in water but soluble in acids or alkalis. ... Zinc sulfate (ZnSO4) is a colorless crystalline, water-soluble chemical compound. ... Burows solution is a pharmacological preparation made of aluminum acetate disolved in water. ... Tincture of benzoin is a solution of benzoin resin in alcohol. ... This is a bottle of tannic acid. ... Chemical structure of gallic acid Gallic acid is an organic acid, also known as 3,4,5-trihydroxybenzoic acid, found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. ... For other uses, see Salt (disambiguation). ...


  Results from FactBites:
 
astringent - Encyclopedia.com (906 words)
Astringent medicines cause shrinkage of mucous membranes or exposed tissues and are often used internally to check discharge of serum or mucous secretions in sore throat, hemorrhage, diarrhea, or peptic ulcer.
Mildly astringent solutions are used in the relief of such minor skin irritations as those resulting from superficial cuts, allergies, insect bites, or athlete's foot.
Astringent preparations include silver nitrate, zinc oxide, calamine lotion, tincture of benzoin, and vegetable substances such as tannic and gallic acids, catechu, and oak bark.
Astringent (319 words)
Astringent substances are also found in many fruits such as flthorn, bird cherry and persimmon fruits, giving them their mouth-puckering qualities.
Astringent medicines cause shrinkage of mucous membranes or exposed tissues and are often used internally to check discharge of blood serum or mucous secretions.
Mildly astringent solutions are used in the relief of such minor skin irritations as those resulting from superficial cuts, allergies, insect bites, or fungal infections such as athlete's foot.
  More results at FactBites »

 
 

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