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Even when you choose breathable fabrics, sweltering summer days can lead to excessive sweating. Beyond the discomfort, this often results in stubborn yellow marks on your clothes.
Thankfully, these stains can be treated. Discover the best methods to tackle them.
What Causes Sweat Stains to Turn Yellow?
While most individuals' sweat appears clear as it trickles down their faces or soaks through their underarms, the resulting stains often turn yellow. What causes this discoloration?
“Deodorants and antiperspirants are packed with a variety of ingredients that, when mixed with sweat, can lead to staining,” explains Wayne Edelman, CEO of Meurice Garment Care, also known as the “Stainmaster,” in an interview with Mytour. “These components range from aluminum-based compounds to waxes and petrochemicals, resembling a chemistry experiment.”
Effective Methods to Remove Sweat Stains
Edelman emphasizes that sweat stains should be addressed immediately after clothing is worn. “If ignored, the stain can set in, leading to permanent discoloration or requiring more intensive treatment to eliminate,” he notes.
The approach to removing sweat stains varies based on the fabric and dyes of the garment. Edelman advises attempting stain removal at home only on washable items, while dry-clean-only clothing should be handled by professionals.
“Sweat stains can typically be cleaned by first applying a commercial stain remover with broad-spectrum effectiveness, such as Spray ‘n Wash or Shout,” Edelman advises. “Spray the product on the stained area and gently scrub with a spotters brush. This brushing action helps the soap and detergent penetrate the fabric fibers.”
However, pretreatment alone isn’t sufficient. The next step is to wash the garment to remove the pretreatment solution.
If yellow sweat stains persist after pretreatment and washing, Edelman suggests using a tannin solution made with vinegar.
To create this solution at home, combine 1/2 teaspoon of laundry detergent, 1/4 cup of white vinegar, and 1/4 cup of cool water. Apply it like a commercial stain remover, gently brush it onto the stain, and wash the garment immediately.
For white garments that still show stains after the above treatments, Edelman recommends soaking them in a mixture of laundry detergent and a sodium-based bleach, such as OxiClean.
“Always adhere to the instructions—adjusting for the amount of water—and ensure the bleach is completely rinsed out in a standard wash after a bleach soak,” he clarifies. “Keeping the temperature consistent during this step ensures the bleach remains effective. Modern washing machines often feature heated soak cycles, which are ideal for this purpose.”
