I have recently found out that the white/yellowish "sweat" stains one occasionally finds on t-shirts might be aluminium chlorohydrate polymers.

While talk about aluminium and antiperspirants is all over the press and there are lots of DYI-instructions for removing them, they all sound quite pseudoscientific. I find it strange, for instance, that some guides recommend both vinegar and/or baking soda as a remedy...

Any ideas what else I could use to dissolve such stains without also dissolving much of the pigments?


Have you tried baking soda or washing soda? It may sound pseudoscientific but many people have had success.

Even more successful is using baking soda as a deodorant, avoiding the aluminum altogether.

  • $\begingroup$ I might try it if I don't get any more compelling ideas till the next time I do laundry. As for it "working" for many - I would not rely on their objective evaluation. And baking soda as a deodorant? I'd be tempted to ask why then nobody markets it as such. I do try to buy doedorants without aluminium chlorohydrate, but since there are so few brands (that cater to people who want to not perspire, not to go-natural fanatics) which sell them I would guess it's a rather essential compound. $\endgroup$ – TheChymera Jul 13 '14 at 5:21
  • $\begingroup$ Baking soda is dirt cheap so there's no money to be made from it. Baking soda is a base and the malodorous compounds in sweat tend to be acids so the baking soda deprotonates them, making them less volatile and unable to reach the nose. $\endgroup$ – Brinn Belyea Jul 13 '14 at 20:48

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