The cutting heads on a rotary electric razor should be changed every 18 months.

TL;DR

According to the american academy of dermatologists, disposable razors should be thrown away after every five to seven shaves. The cutting heads on a rotary electric razor should be changed every 18 months.

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How Long Should Shaver Heads Last?

According to the american academy of dermatologists, disposable razors should be thrown away after every five to seven shaves. If you keep your razor blades clean, they should last five to seven shaves. [1]

Do Electric Shavers Get Dull?

The electric razor can last a lifetime with proper care, but its blades can’t. Every time you shave, the blades become less and less sharp. The sharpening of the blades is only for a short time. [3]

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How Often Do Electric Shaver Blades Need To Be Replaced?

The answer is every 6 months or so. Unlike disposable razors that are made of thin and fragile materials that only last a few shaves, the blades of electric razors are much more solid and can last for months. [4]

How Long Does A Shaver Head Last?

This should be based on the number of shaves, not weeks. You want to change your razor blade after a few shaves. The thickness and density of your facial hair are more important than the number of shaves gillette recommends. [5]

How Long Do Philips Shaver Heads Last?

The blades should be replaced every four months. Depending on usage and hair type, this can vary. If you use the oneblade a lot, the blades may need to be replaced sooner than four months. The blades can last longer if you are a light user. [6]

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Do You Have To Replace Braun Shaver Head?

It is recommended that you change your shaver head every 18 months. [8]

How Do You Know If Your Shaver Is Dull?

If your razor pulls at your facial hair or feels rougher than usual, it’s too dull. Bleeding nicks and bumps on more sensitive areas of the face are possible. If the blade doesn’t feel smooth or starts cutting against your skin, then it’s time to replace it. [9]

Sources:

  1. https://www.themanual.com/grooming/change-razor-blades/
  2. https://www.refinedshave.com/how-to-sharpen-an-electric-razor/
  3. https://www.refinedshave.com/how-often-should-you-replace-electric-razor/
  4. https://bolinwebb.com/blogs/journal/how-often-should-you-change-your-razor-blades-to-get-the-best-shave
  5. https://www.philips.co.uk/c-f/XC000014594/when-should-i-replace-the-blades-of-my-philips-oneblade
  6. https://us.braun.com/en-us/male-grooming/replacement-shaver-heads/
  7. https://imustacheyoutoshave.com/how-to-tell-if-your-razor-is-sharp-enough/

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