Examples are deodorant, antiperspirants, astringents, and hemostatic agents. Calamine lotion, witch hazel, and yerba mansa, a Californian plant, are astringents. People with acne are often advised to use astringents if they have oily skin. Some metal salts and acids have also been used as astringents. This taste is caused by astringents such as tannins. Skin products with high levels of alcohol or astringents should also be avoided. Seeping it in astringents and buffalo milk and then drying it under the sun. It comes in the form of fibrous pads saturated with astringents. Astringents like zinc chloride provide a pleasant-tasting sensation and shrink tissues. Lead poisoning and the development of more effective astringents caused doctors to abandon its use.