New here! Cycling shorts & undies question

[PamNY]

When they get smelly wash them by hand in dandruff shampoo. The chemicals in dandruff shampoo cut the odor in man-made fabric. Another TE'er mentioned this, I tried it, and it really works.
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Which dandruff shampoo do you use? There are several different active ingredients.

[KnottedYet]

Which dandruff shampoo do you use? There are several different active ingredients.

I can't find the thread. It was a TE'er whose SO worked for J+J, and had been working on a de-stinkifier for manmade fibers. The active ingredient was the same one as is used in Head And Shoulders shampoo. I bought a store brand shampoo with the same ingredient, it worked great. (I'm at work right now, so I can't look up what the ingredient was)

[PamNY]

Thanks! Head and Shoulders' active ingredient is pyrithione zinc.