Skip to content
What Gets It OutUK stain removal lookup
Clothes · Sweat and deodorant

Yellow sweat stains: how to get them out (even without washing the whole thing)

Treat the underarms before anything else. Here's what works on washable shirts, and what to do with a jacket you can't put in the machine.

Quick answer

  1. !No iron, no tumble dryer until the mark has gone.
  2. 1Pre-treat and wash (washable clothes)
  3. 2Fix yellowing with vinegar
  4. 3Oxygen bleach soak (stubborn stains)
  5. 4Spot-clean only the stained area (jackets and things you can't wash)

Match your situation

Your situationTry this
Washable cotton T-shirt or shirtPre-treat and wash (step 1). If it's still there, an oxygen bleach soak (step 3).
The underarm has turned yellow or changed colourWhite vinegar on an old stain, or a few drops of ammonia on a new one (step 2). [2][4]
Jacket with pins, patches or a lining you can't wash wholeSpot-clean just the stained area (step 4).
Silk or woolDon't use ammonia: it damages silk and wool. [2] Follow the care label, and see lace and delicates.
Label says dry clean onlyTake it to a dry cleaner and tell them what the stain is. [6]

What you need

Shop links go to Amazon UK search results. As an Amazon Associate I earn from qualifying purchases. It never changes what a guide recommends.

Step1

Pre-treat and wash

Washable clothes

The American Cleaning Institute's method for perspiration: [4]

  1. Treat the underarms with a prewash stain remover, or rub them with a bar of soap.
  2. Wash in the hottest water that's safe for the fabric, as the care label says.
  3. Check it while wet. Don't dry it until the stain has gone.

If you use Vanish Oxi Action Multi Power Gel, Vanish's dose for sweat stains is 50 ml for normal stains and 100 ml for tough, dried-in ones, with your usual detergent. Treat the stain as soon as you can. [1]

Test first

Before using any stain remover, test it on a hidden part such as the inside of a hem. Dampen it, apply a little, wait up to 10 minutes, then blot with a white cloth. If colour comes off, don't use it. [8]

Step2

Fix yellowing with vinegar

If sweat has changed the colour of the fabric, University of Georgia Extension and the American Cleaning Institute suggest: [2][4]

  1. For old stains: apply a few drops of white vinegar, then rinse.
  2. For new stains: a few drops of ammonia instead, then rinse.
  3. Then wash as in step 1.

Careful with ammonia

Ammonia damages silk and wool. If you must use it on them, dilute it with an equal amount of water and use very little. [2] Never mix ammonia with bleach. [6]

Step3

Oxygen bleach soak

Stubborn stains

Stubborn sweat stains may respond to an enzyme product or an oxygen bleach in the hottest water safe for the fabric. [4]

University of Georgia Extension's soak: [2]

  1. Soak the garment in warm water with an oxygen bleach (sodium perborate) for 15 to 30 minutes.
  2. Wash it in the hottest water and with a bleach that are safe for the garment.

UK oxygen stain-remover powders such as Vanish Oxi Action use sodium percarbonate, which releases active oxygen. Follow the soak directions on your pack. [9]

Still smells?

University of Georgia Extension: soak overnight in warm water with 3 or 4 tablespoons of salt per quart (just under a litre). If the smell stays, pre-treat with liquid detergent for 30 minutes, then wash. [2]

Step4

Spot-clean only the stained area

Jackets and non-washables

You don't always have to wash the whole thing. Levi's says that for minor stains you can spot clean with a damp cloth, a soft brush and mild soap instead of washing the entire garment. [5]

University of Georgia Extension's method for fabric that can't go in the wash (written for upholstery in cotton, linen, polyester, nylon or acrylic): [2]

  1. Spray the stain lightly with a laundry prewash product. Blot with a white absorbent cloth.
  2. When the stain has lifted, sponge with a little mild washing-up liquid and water.
  3. Sponge with clean water and blot. Let it dry as quickly as possible.
  4. For old sweat stains, sponge with a diluted solution of white vinegar and water instead, then sponge with clean water.

Don't overwet it

Too much water can leave a ring around the area you cleaned. Test every product on a hidden spot first. [2] If the label says dry clean only, take it to a dry cleaner instead. [6]

Stop it happening again

  • Let your deodorant dry completely before you put your top on. [7]
  • Wash clothes soon after wearing them, and don't leave sweaty clothes in a bag or the laundry basket for long. [7]
  • Wear a vest or T-shirt underneath to protect the garment. [7]

Sources

  1. Vanish UK: How to remove sweat stains from clothes
  2. University of Georgia Extension (Textiles): Remove stains from perspiration
  3. University of Georgia Extension (Textiles): Remove stains from antiperspirant, deodorant
  4. American Cleaning Institute: Stain removal guide (perspiration)
  5. Levi's: Denim care and washing (spot cleaning)
  6. Texas A&M AgriLife Extension: Removing stains from washable fabrics (PDF)
  7. NIVEA UK: How to get rid of sweat stains (prevention tips)
  8. Dr. Beckmann UK: FAQ (colourfastness test)
  9. Vanish UK: Oxi Action Stain Remover Powder (ingredients and directions)

Answers a common question: how to get yellowing or sweat stains out without washing the whole garment (example on X, Oct 2026). Checked 22 Oct 2026.

Related guides

Filed under

Back to top