HOW OFTEN TO CHANGE YOUR BLADE

Blade Care · Quick Answer
HOW OFTEN TO
CHANGE YOUR
BLADE

The short answer, a simple guide by how often you shave, and the signs your blade has had its day.

By SmartShave Editorial  ·  4 min read · Blade Care
1 week
our advice
change your blade about once a week if you shave regularly
5–10
shaves
the range most razor guidance gives before a blade should be replaced
5
warning signs
pulling, extra pressure, irritation, nicks and visible damage
4
cartridges a month
in the SmartShave monthly plan, one for each week

For regular shaving, change your blade about once a week. That’s our recommendation, and it works out at roughly 5 to 7 shaves if you shave most days. General guidance puts the range at around 5 to 10 shaves, depending on your hair, your skin and your technique. The best test is simple: if the razor pulls, needs more pressure or leaves your skin irritated, change it.

A Simple Guide by How Often You Shave

How often you shaveChange your blade
Most daysAbout once a week
Every other dayEvery 1 to 2 weeks, or sooner if it starts to pull
Once or twice a weekAbout every 2 weeks, or when it starts to drag
Thick or coarse hairToward the sooner end of any of the above

Treat this as a starting point. Your skin and your blade are the best judges.

Five Signs It’s Time for a New Blade

1
It Pulls or Tugs

A sharp blade glides through hair. A worn one catches it and tugs, which you’ll feel straight away.

Action: Change it as soon as you notice tugging.
2
You Need More Pressure or More Passes

If you’re pressing harder or going back over the same patch, the blade is no longer cutting cleanly.

Action: Fix the blade, not your grip.
3
Your Skin Is More Irritated Than Usual

Redness, stinging and small bumps after a shave often point to a tired blade. See our razor burn guide for more.

Action: Swap the blade before you change anything else.
4
You’re Getting Nicks

A dull blade is more likely to snag skin than slice hair.

Action: Treat repeated nicks as a blade warning.
5
The Blade Looks Damaged or Rusty

Dents, jagged edges or rust mean the blade should go straight in the bin.

Action: Replace it immediately, whatever its age.

Why It Matters

A worn blade doesn’t just give a worse shave. It increases friction, which is one of the most common causes of razor burn, and it makes you press harder, which makes things worse. Changing your blade on time is the cheapest way to improve almost any shave. Our sensitive skin guide has a two-week reset if your skin has been struggling.

SmartShave starter kit razor with pivoting action head
Starter kit
Never Run Out of Sharp Blades
  • Premium handle with a quality rubber grip
  • Pivoting action head
  • Strip with vitamin E and aloe
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3-blade kit: £9.995-blade kit: £9.99
One handle and one cartridge. Change, delay or cancel any time.

Why Weekly Works With a Subscription

The weekly rhythm is why our monthly plan includes four cartridges, one for each week of the month. Your first delivery includes a handle and four cartridges, and you can change, delay or cancel your deliveries at any time for free. If you shave less often, delay a delivery. If you’d rather decide each time, you can.

What customers say

★★★★★

“Less strokes = less irritation, so definitely a positive”

Jonathan T. · Trustpilot · March 2026
★★★★★

“The quality is fantastic and more importantly a comfortable shave with no irritation”

Paul · Trustpilot · August 2021
★★★★★

“Such a smooth shave, will definitely be getting more”

Michelle · Trustpilot · September 2019

Frequently asked questions

Can I use a razor blade for a month?

Most razor guidance says no. A blade gets duller with every shave, and a dull blade is a common cause of irritation. If it’s still comfortable after a few weeks, you probably shave very rarely.

How do I know if my blade is dull?

It pulls, you need more pressure, your skin is more irritated than usual, or you’re getting nicks. If you notice any of these, change it.

Does a 5-blade cartridge last longer than a 3-blade?

Not necessarily, and our advice is the same for both: about once a week for regular shaving, or sooner if it starts to pull.

What if I only shave once a week?

Blades don’t last forever, even if you use them rarely. Change yours when it starts to tug, or about every couple of weeks.

Can I pause my SmartShave deliveries?

Yes. You can change, delay or cancel at any time for free, from your account.

→
The Verdict
Weekly for most. Whenever it pulls for everyone.

A good rule is one blade a week if you shave regularly. A better rule is to change it the moment it feels different. Sharp blades make shaving quicker, easier and kinder to your skin.

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