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An astringent (sometimes called adstringent) is a chemical that shrinks or constricts body tissues. The word derives from the Latin adstringere , which means "to bind fast". Astringency , the dry, puckering or numbing mouthfeel caused by the tannins [ 1 ] [ 2 ] in unripe fruits, lets the fruit mature by deterring eating.
The preparation has astringent and antibacterial properties and may be used to treat a number of skin conditions, including insect bites and stings, rashes caused by poison ivy and poison sumac, swelling, allergies, and bruises. However, its main use is for treatment of otitis (ear infection), including otomycosis (fungal ear infection). [2]
Astringents: Ingredients like witch hazel and alcohol help tighten pores, remove excess oils, and reduce inflammation. [ 14 ] Humectants: Hydrating agents like hyaluronic acid and glycerin help skin attract and retain moisture.
Baby powder is an astringent powder used for preventing diaper rash and for cosmetic uses. It may be composed of talc (in which case it is also called talcum powder), corn starch or potato starch. [1] It may contain additional ingredients such as fragrances.
Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids. The term tannin is widely applied to any large polyphenolic compound containing sufficient hydroxyls and other suitable groups (such as carboxyls ) to form ...
Witch-hazel may be sold as a semisolid ointment, cream, gel, or salve for topical use, [15] [18] and due to its astringent and antiseptic properties, has long been used to treat various skin conditions like acne. [19] [20] The ointment may ease discomfort from post-partum vaginal soreness and hemorrhoids.
Bonne Bell is a cosmetics company aimed for teens. The company was best known for its line of astringents and cleansers named "10-0-6." In the 1970s, they expanded into a popular range of lip balms called Lip Smackers which became the company's signature product.
Catechu (/ ˈ k æ t ɪ ʃ uː / or / ˈ k æ t ɪ tʃ uː /) [1] is an extract of acacia trees used variously as a food additive, astringent, tannin, and dye. It is extracted from several species of Acacia, but especially Senegalia catechu (previously called Acacia catechu), by boiling the wood in water and evaporating the resulting brew. [2]
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