Rinse the stained area with cold water as soon as possible
Mix equal parts white vinegar and water
Soak the stain for 30 to 60 minutes
Apply liquid laundry detergent directly to the stain
Gently rub the fabric together or use a soft brush
Sprinkle baking soda on the stain for extra lift
Let it sit for 15 to 30 minutes
Wash the shirt in the warmest water safe for the fabric
Use an oxygen bleach soak for stubborn stains
Avoid chlorine bleach on protein-based stains
Air dry the shirt before checking if the stain is gone
Repeat the treatment before machine drying if needed
Use an enzyme stain remover for old sweat stains
Wash shirts promptly after wearing to prevent buildup
Wear an undershirt to reduce future sweat stains