Yellow sweat stains occur when salt and aluminum from antiperspirants are combined, states About.com. Aluminum is the primary reason for the formation of yellow stains on clothing.Know More
According to The Manual, antiperspirants in particular are the main cause of yellow stains, because the active ingredient in many antiperspirants is aluminum. Antiperspirants work by clogging sweat ducts to minimize odor and bacteria formation, while deodorant is responsible for destroying bacteria entirely. The aluminum, as opposed to salt from sweat, spawns a chemical reaction on clothing.
According to Natural News, some aluminum compounds found in underarm products are aluminum chlorohydrate, aluminum chloride and aluminum zirconium. However, The Manual does note that aluminum chlorohydrate is deemed the least harmful agent to clothing.
About.com further explains that yellow stains are most prominent on white shirts, but can also show on darker clothing as well. The best way to get rid of these stains is through careful washing, or dry-cleaning clothes that are not washable at home. One prevention technique is to allow underarm products to dry before putting on an article of clothing. According to the Art of Manliness, using bleach actually enhances the color of yellow stains on shirts. Type F recommends using aluminum-free antiperspirants to avoid yellow stains altogether.Learn more about Laundry
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Yellow deodorant stains are caused by a reaction between the salts in perspiration and the aluminum compounds found in the majority of anti-perspirants. This type of stain is accumulative, meaning that it develops and intensifies over time. The longer such a stain is left untreated, the more noticeable it becomes.Full Answer >
One of the easiest methods for preventing armpit stains on shirts is to wear an undershirt. This is most helpful when wearing a dress shirt, but sometimes, depending on the style of an article of clothing, wearing an undershirt is not possible. In this case, it is important to focus on antiperspirant use. Antiperspirants, not the sweat itself, are typically the primary cause of underarm stains.Full Answer >
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