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Why do the armpits of some shirts turn yellow?

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daisylane asked:


mostly white shirts, not all, some grey ones too. Is it deoderant? Fabric of the shirt? Someone told me it was a gas dryer vs an electric dryer. We have an electric dryer and this doesn’t happen to many of our shirts…but I have had to toss a couple of white t’s because of it…does anyone know what causes this anomoly?

DARRON

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  1. lilyfield
    June 2nd, 2009 at 08:24 | #1

    I’ve found this to happen when my husband puts on too much deodorant and it isn’t dry before he puts on his shirt.

    I haven’t found anything to take it out and it happens to other colors too, it just isn’t as noticeable.

  2. physics guy
    June 2nd, 2009 at 22:00 | #2

    This is caused by underarm sweat and underarm deoderants bleaching or dyeing those areas over long periods of time. Our sweat contains many acids and salts that can easily stain clothes over time. By the time you get the shirt to the washer and dryer, the damage is already done… You can’t reverse it.

  3. 0xxchelseaxx0
    June 5th, 2009 at 04:00 | #3

    its the deodrant

  4. Copgirl2008
    June 5th, 2009 at 18:59 | #4

    From sweating badly. It usually shows up more in lighter colored shirts.

  5. MrsZ
    June 8th, 2009 at 08:51 | #5

    it’s deodorant. Make a solution of ammonia and laudry detergent to put on the stains. Throw them into the wash after letting it sit on the fabric for 15 minutes.

  6. toothacres
    June 10th, 2009 at 01:23 | #6

    always turn your shirts inside out before washing. this greatly reduces the discoloration.

  7. dimpelmum
    June 13th, 2009 at 06:10 | #7

    Yes it the 2 things deodorant and the sweat, the best way to clean this is buy soaking the shirts in cold water ,add some good old fashioned bar soap leave the shirt free from the water for 1/2 hr . Then put the shirt back to the cold water rub more soap in and straight to the washing machine . The problem is the more heat you add to a stain the harder it is to remove talking in washing temp terms, Also after you have washed your shirts if you can hang them out in the sun the sun will bleach the stain out the natural way

  8. Kristi
    June 16th, 2009 at 11:51 | #8

    I had the same problem for years. I did a little research and the aluminum found in most deodorants/antiperspirants is the cause for shirts turning yellow around the armpit area. I switched to a natural deodorant (no aluminum) and haven’t had a problem since.

    Also, I found out that aluminum is linked to ****** cancer. That’s another reason why I made the switch.

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