eli5 How does razor blade dull on hairs when razor blades are made of steel and they are much higher on mohs scale?
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It’s not just hair. You have to remember other ingredients are in the mix. Shaving cream, oils, skin cells, persperation, blood, water, debris, soap scum and other buildup, plus whatever the razor is factory coated with.
All that stuff is being scraped against micro blades that are by design meant to degrade quickly.
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