Often shaving commercials brag about how their razor has more blades than their competitors, are more blades somehow better, and if so why?
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If you are shaving using a straight razor, only one blade is necessary. However, very few people shave with straight razors because it is dangerous and time consuming in its own way. Instead, nearly all razors are safety razors. Safety razors have guards around the blade to ensure it can’t cut too deeply into the skin. Hair can build up between the blade and that guard, making the blade less effective and more likely to snag on the skin. You can (usually) dislodge this hair just by rinsing the razor head, but the more blades there are on the razor, the harder it is to clog all of them, and the less frequently you have to rinse.
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