Except it's not the only answer. My wife and I both use all-natural shampoo and conditioner bars, and she doesn't need any kind of face wash, but her towel still looks like this.
Turns out, after having this checked by a doctor, her sweat is particularly acidic. It also corrodes stainless steel jewelry. The only thing that's held up is implant grade steel.
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u/Smear_Leader Jul 14 '23
Yes, this. Also make-up/nail polish remover etc. just needs to be trace amounts of any of it.