A crystal of alum, an astringent

An astringent (also spelled adstringent) substance is a chemical that tends to shrink or constrict body tissues, usually locally after topical medicinal application. For the purely-slang term alum meaning "graduate" see Alumnus. Tissue is a cellular organizational level intermediate between cells and a complete organism In Medicine, a topical Medication is applied to body surfaces such as the Skin or Mucous membranes for example the Vagina The word "astringent" derives from Latin astringere, meaning "to bind fast". Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. Two common examples are calamine lotion and witch hazel. For the mineral see Calamine (mineral, for other uses of the word see Calamine (disambiguation. Witch hazel is an Astringent produced from the leaves and bark of the North American Witch Hazel shrub ( Hamamelis virginiana) which ranges from Nova

Astringency is also the dry, puckering mouthfeel caused by tannins found in many fruits such as blackthorn, bird cherry and persimmon fruits. Mouthfeel is a product’s physical and Chemical interaction in the mouth Tannins are Astringent, bitter plant Polyphenols that either bind and Precipitate or shrink Proteins The astringency from the tannins is what The term fruit has different meanings dependent on context and the term is not synonymous in Food preparation and Biology. Blackthorn redirects here for other uses see Blackthorn (disambiguation Prunus spinosa ( Blackthorn or Sloe The Bird Cherry ( Prunus padus; syn Cerasus padus ( L, Prunus racemosa Lam This article refers to the edible fruit For the British construction company see Persimmon plc; for the racehorse see Persimmon (horse. The tannins denature the salivary proteins, causing a rough "sandpapery" sensation in the mouth. Astringency tastes unpleasant to many mammals (including humans), which tend to avoid eating astringent fruit; conversely, birds do not taste astringency and readily eat these fruit. Mammals ( class Mammalia) are a class of Vertebrate Animals characterized by the presence of Sweat glands, including sweat glands Birds ( class Aves) are bipedal endothermic ( Warm-blooded) Vertebrate animals that lay eggs. It is thought that fruit astringency gives a selective advantage to some plant varieties because birds are better than mammals at long-distance seed dispersal, often flying a great distance before passing the seeds in their droppings. Natural selection is the process by which favorable Heritable traits become more common in successive Generations of a Population of A seed (in some plants referred to as a kernel) is a small embryonic Plant enclosed in a covering called the seed coat usually with some stored Feces, faeces, or fæces (see spelling differences) is a waste product from an animal's digestive tract expelled through the Anus

Astringent substances are also found in some wines and teas. Wine is an Alcoholic beverage made from the fermentation of Grape juice Tea refers to the cured agricultural product of the leaves leaf buds and internodes of Camellia sinensis, which have been prepared and cured for the market A small amount of astringency is expected in some wines, especially young red wines made from grapes such as cabernet sauvignon. Cabernet Sauvignon is one of the world's most widely recognized red Wine grape varieties.

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. The mucous membranes (or mucosae; singular mucosa) are linings of mostly endodermal origin covered in Epithelium, which are involved in Blood plasma is the Liquid component of Blood, in which the Blood cells are suspended This can happen with a sore throat, hemorrhages, diarrhea, or with peptic ulcers. Bleeding, technically known as hemorrhaging / haemorrhaging (see American and British spelling differences) is the loss of Blood from In Medicine, diarrhea, also spelled diarrhoea (see spelling differences) is frequent loose or liquid Bowel movements Acute diarrhea A peptic ulcer, also known as PUD or peptic ulcer disease, is an Ulcer (defined as mucosal erosions equal to or greater than 0 Externally applied astringents, which cause mild coagulation of skin proteins, dry, harden, and protect the skin. Proteins are large Organic compounds made of Amino acids arranged in a linear chain and joined together by Peptide bonds between the Carboxyl The skin is the outer covering of living tissue of an animal (or plant Acne sufferers are often advised to use astringents if they have oily skin. Acne vulgaris (commonly called acne) is a Skin disease caused by changes in the Pilosebaceous units (skin structures consisting of a Hair follicle [1] Astringents also help heal stretch marks and other scars. 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. Insects ( Class Insecta) are a major group of Arthropods and the most diverse group of Animals on the Earth with over a million described Athlete's foot, also called Tinea Pedis, is a Parasitic fungal infection of the epidermis of the human foot

Some common astringent agents include alum, oatmeal, yarrow, witch hazel, bayberry, very cold water, and rubbing alcohol. For the purely-slang term alum meaning "graduate" see Alumnus. Breakfast cereal health benefits There has been increasing interest in oatmeal in recent years due to its beneficial health effects Achillea millefolium or Yarrow (other common names Common Yarrow Gordaldo, Nosebleed plant, Old Man's Pepper, Sanguinary Witch hazel is an Astringent produced from the leaves and bark of the North American Witch Hazel shrub ( Hamamelis virginiana) which ranges from Nova Myrica is a genus of about 35-50 species of small Trees and Shrubs in the family Myricaceae order Fagales Water is a common Chemical substance that is essential for the survival of all known forms of Life. Rubbing alcohol USP / BP is a liquid prepared and used primarily for Topical application Astringent preparations include silver nitrate, zinc oxide, zinc sulfate, Burow's solution, tincture of benzoin, and vegetable substances such as tannic and gallic acids. Silver nitrate also known as lunar caustic is a soluble Chemical compound with Chemical formula Ag[[Nitrogen N]] O 3 Zinc oxide is a Chemical compound with the formula ZnO It is nearly insoluble in water but soluble in Acids and Bases It occurs Zinc sulfate ( Zn[[Sulfate SO4]] is a colorless crystalline water-soluble Chemical compound. Burow's solution is a pharmacological preparation made of Aluminium acetate dissolved in water Tincture of benzoin is a pungent solution of Benzoin resin in alcohol Tannic acid, a commercial form of Tannin, is a Polyphenol. Its weak acidity ( pKa around 10 is due to these Phenol groups in Gallic acid is an Organic acid, also known as 345-trihydroxy Benzoic acid, found in Gallnuts Sumac, Witch hazel, Tea leaves Balaustines are the red rose-like flowers of the pomegranate, which are very bitter to the taste. Red is any of a number of similar Colors evoked by light consisting predominantly of the longest wavelengths of Light discernible by the human eye in the wavelength A rose is a perennial flowering Shrub or vine of the Genus Rosa, within the family Rosaceae, that contains over 100 species A flower, also known as a bloom or Blossom, is the reproductive structure found in Flowering plants (plants of the division Magnoliophyta, also The pomegranate ( Punica granatum) is a Fruit -bearing Deciduous Shrub or small Tree growing to between five and eight metres tall In medicine, its dried form has been used as an astringent. ^[1] Some metal salts and acids have also been used as astringents. Salt is a Dietary mineral composed primarily of Sodium chloride that is essential for Animal life but toxic to most land plants