We can't really answer how long the OmniShaver’s blade edges stay sharp. Although we can confidently say they will outlast all other known shaver’s blades’ edges. If OmniShaver is kept dry and clean between shaves, it stays sharp for an extremely long time. This is because its' blade edges self-straighten and polish (or “strop”) during use.
We’re not promising OmniShaver’s blades will stay sharp forever. But if maintained, they will certainly stay sharp exponentially longer than all other shavers on the market today.
Most other shavers/razors require replacement blades after about a weeks’ worth of shaves, so expect getting over 2 weeks of use is usually considered by most to be a good value.
If your OmniShaver is losing it's sharpness...please try following these instructions:
#1- Soak OmniShaver in hot water for a couple of minutes. Then rinse OmniShaver under hot running water. This should loosen up any clogged on debris. (If successfully cleaned, you should be able to see through the blades to the other side of the OmniShaver).
#2- Pick a 7" to 8" area of skin with no hair, like maybe on the reverse side of your forearm. Now generously lube that area of skin up with hair conditioner. Now take your cleaned OmniShaver and make 25 to 30 fast 5" back and forth strokes over that area of lubricated skin.
#3- Now rinse out OmniShaver and then lubricate your scalp and give shaving another try.
Your blades should be re-sharpened and you should get a great shave.
Replacement blade cartridge kits are now available.
Please see video for tips on extending blade life: https://www.youtube.com/watch?v=F19yDovMWhM