Pinterest Review

Pinterest Experiment: Removing Underarm Stains

Removing Underarm Stains

Do you have a loved t-shirt or a cami that you can’t bear to part with but has those ugly stains from deodorants? Two of my favorites you’ll see below. One is an off white cami from Ann Taylor, I love to wear this under cardigans and sweaters. The other is a summer t-shirt from New York and Company which really got dirty. I was about to get rid of it.

That was until I came across this pin on Pinterest. It connected to who else? Jillee… titled Goodbye to Yellow Armpit Stains. If you remember this Pinterest Experiment, I tested her method for cleaning a cookie sheet. I wanted to give this pin a try because she has so many great cleaning ideas.

It worked so well that I exclaimed “Holy cow it really worked!” I think my husband thought I was a little too excited about doing laundry.

Check out the results:

Before and After T-Shirt

Here’s how to make it.

Stain Removing Miracle Cleaner


  • 1/4 Cup blue Dawn dish soap
  • 1/2 Cup hydrogen peroxide
  • 1 Tablespoon baking soda
  • Old toothbrush
  • Small jar or dish


  1. Place dawn soap, hydrogen peroxide, and baking soda in a jar.
  2. Stir with your old tooth brush. The consistency was goopier than I expected.
  3. Generously brush the mixture on your shirt and lightly scrub your stain.
  4. Apply to under arms and neckline and any rogue stains.
  5. Allow to sit for about an hour.
  6. Wash as usual in warm water.

I applied this to my workout t-shirts and it removed underarm stains, it also helped to remove stains around my husband’s t-shirt collars. However, it did not remove the make up marks that I had on my workout clothes from wiping my face while exercising. But we really shouldn’t workout while wearing make up anyway.

I consider this experiment a big success!

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  • christie

    Just a head’s up that in your list of ingredients you list baking powder. I wondered if you meant baking soda and sure enough, that’s what it says in the text. I’m going to go with the baking soda because I don’t think the baking powder would work (-: Thanks for testing this for us!

    • Lindsay

      Oh my goodness! What a mistake! Thank you so much for letting met know I just corrected it to say baking soda. 🙂 Try it out, it’s really great.

    • Lindsay

      Hi Beth, Thanks for your comment! I have not tried Ajax so I can’t say one way or another. If you do decide to use it, try it out on something old. That way you don’t ruin something you love. I use blue dawn to clean a lot of things, I like it so I stick with it. If you give it a try let us know! Thanks!

  • Linda

    I haven’t tried any other product besides Dawn, because I used to work in a dry cleaner, and instead of sending good silk ties to the main cleaner, we used to spot Dawn on any stains, rub gently then fill the sink with warm water and leave a while to soak. Rinse well, dry and iron, Voila, $3.00 saved for the store!

    I had a friend who raised alpacas and knitted with their yarn. He said that ‘wool wash’ often left a sticky residue, but Dawn left everything soft and clean.

  • Lori

    Oh, another question: Do you have trouble keeping whites white? My husband’s undershirts look especially bad…kind of grayish-yellow. I was wondering if it was the homemade laundry detergent I make with Washing Soda, Borax, and Fels-Naptha laundry bar. Since the Fels is yellow…and my resulting detergent has a slight yellow cast to it; I wonder if that is causing the problem. Funny thing is that only his shirts that are 50 cotton/50 poly look like that. Socks, undies, etc that are 100% cotton are still white. Do you think it could be the fabric and the laundry detergent?

    • Lindsay

      Hi Lori,
      Hmm, I don’t think the color of the detergent you are using is causing the t-shirts to yellow. Although, I’ve never used homemade detergent. It might be residue from frequent wear and washing. I add borax to my regular detergent, Purex, and that has brightened up clothes and removed old stains, but that’s in your homemade detergent. I would try drying them in direct sunlight. And adding a whitening agent to the load like vinegar, hydrogen peroxide, or I’ve read lemon juice can work too but haven’t tried it, and then put it in the sun to dry.

      Maybe this link will help you:

      Hope it works out for you!

  • shana

    i have an awful time with deodorant stains on my bra and need a recipe to see if it will get it out b/c washing doesn’t seem to be getting the job done all the way. do u think this would help??? and if not, do you know of anything that would take it out?

  • Karen

    The question regarding 50/50 shirts turning gray or yellow… the answer may be, if you’ve used chlorine bleach on the 50/50 shirts. Unless an item is 100% cotton, you should stick to all fabric bleach for colors. Poly doesn’t like bleach. Hope that helps.

  • Mary

    Definitely looking forward to trying this! We’ve used various techniques before and things will appear to get the deodorant stain out for the time being, but it shows back up same as ever after the first wearing, like it was only masked. Have you noticed this with this remedy? Will be trying for myself, but thought I would check. Thanks!!!

    • Lindsay

      Hi Mary, Thanks for the question. No, I have not noticed the stain returning. I wrote this post 3 years ago and these shirts are still looking good!

    • Lindsay

      Hi Jannett,
      Try Ajax. I’m not sure about vinegar. Leave out the baking soda if you don’t have it on hand. But I can’t say for sure since I’ve never tried it.
      If you have any success please let us know!

  • Jamie

    Hi! I know this works…but the biggest problem is that you have those stains…you need to switch deodorants!! It’s reacting with the chemicals in your body. I’ve tried sooooo many, and settled with toms of main….but only the one that says women’s naturally dry!! It’s the only one that kept the sweat and smell at bay…and no more yellow!!! Good luck!!

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