Razor blades get dull for two main reasons
- Wear and tear
It’s kinda obvious that blades become dull because they’re used a lot, but the less intuitive reason is corrosion. Reactions with the environment and bacteria can cause the blade to get microscopic ridges, grooves and snags. They’re invisible to the naked eye, but they’re there!
Take a look at even a brand new razor blade. Magnified 1300x, it’s not nearly as smooth as you might think!
If this is what a new razor blade looks like, you can imagine what it would look like after its been used for a while. Corrosion would make all the imperfections even more pronounced.
So, how do we avoid corrosion?
Water is great when you’re shaving, but it’s terrible for your razor blade. It causes the blade to rust and provides a festering pool for bacteria growth. It’s obviously OK to get water all over your razor while your shaving, but after you’re done, wipe it off with a towel to get it as dry as possible. And more importantly, don’t leave it in your shower! Store it in your medicine cabinet.
An even more effective way avoid corrosion is to dip your razor in rubbing alcohol after each use. The alcohol will displace the water and will evaporate very quickly. It’ll kill all the bacteria too which is a great added bonus.
Interesting Fact: Modern-day steel is made from iron and carbon to get give it extra strength (making it about twice as strong as iron alone). Most modern-day razor blades are made with stainless steel which adds a few other ingredients to mix (mainly 11% of chromium which helps prevent the steel from rusting).
Corrosion is the biggest reason why good blades go bad. Drying off your blade with a towel or putting it in rubbing alcohol after each use will significantly extend its life. You’ll not only get more smoother shaves, but you’ll save some money too!
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