Why Does Sweat Discolor Clothes?

Some of us may sweat more than others, but sweat stains are something everyone must deal with in their laundry. ... The real cause of these yellowish stains is a mixture of the minerals (especially salt) in sweat mixing with the ingredients in antiperspirant or deodorant (primarily aluminum).

Does sweat cause clothes to fade?

Perspiration is simply something we all must deal with. ... These ingredients might seem benign, but unfortunately, if left unattended on clothing, they can cause the fabric to become discolored and eventually weaken, and sweat in conjunction with antiperspirant can create even more issues.

How do I stop sweat from ruining my clothes?