# Razor Blades -- Point Of Diminishing Returns

**URL:** <https://boards.straightdope.com/t/razor-blades-point-of-diminishing-returns/490652>\
**Category:** Factual Questions\
**Created:** [March 24, 2009, 10:01pm UTC](https://boards.straightdope.com/t/razor-blades-point-of-diminishing-returns/490652 "2009-03-24T22:01:29Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![JimOfAllTrades](https://avatars.discourse-cdn.com/v4/letter/j/ba8739/32.png) [@JimOfAllTrades](https://boards.straightdope.com/u/JimOfAllTrades)\
**Post date:** [March 25, 2009, 7:16pm UTC](https://boards.straightdope.com/t/razor-blades-point-of-diminishing-returns/490652/21 "2009-03-25T19:16:36Z")

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> [@RedFury](#):
>
> Mind you, I am not calling you a liar, it’s just that I’ve never heard of such a thing. I mean I was told once by a barber that you could use my beard-stubs as a stylus they are so hard when coming out, so I can’t imagine any sort of blade lasting me more than five/six shaves _tops_, never mind a whole _month_!
> 
> Good for you if that’s the case though.

I use a Mach 3, shave four or five times a week normally, and change my blade monthly. When I put a new blade in I do notice that I feel a little less irritation than with the “worn out” blade I just removed, but the overall shave isn’t really very much different.

My beard is not super heavy by any means, but I think it’s about average. So a month isn’t out of line at all. I could probably go six weeks without noticing it too much.

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