Combien de fois peut-on utiliser une lame de rasoir avant de la changer ?

June 11, 2026

How many times can you use a razor blade before changing it?

by Blades Barbier in News

The short answer: it depends. The helpful answer: 3 to 10 times for a double-edge blade, 5 to 15 times for a cartridge, with significant variations depending on your beard, skin, and even the water quality at your home. Here's how to accurately know when to change yours.

Feather New Hi-Stainless razor blades in their individual packaging — high-precision Japanese double-edge DE blade — Feather New Hi-Stainless blades — Feather is considered one of the most durable blades on the market

There's no universal number, and that's normal

Manufacturers provide broad numbers because they have to. Gillette mentions a month of use. Wilkinson quotes 10 shaves. These indications apply to a fine beard shaved daily under good conditions. For a thick beard with hard water, it's a different reality.

What truly makes a difference is the combination of four variables: the type of blade, the hardness of your beard, the frequency of shaving, and how you maintain your blade between uses.

By blade type: practical benchmarks

The double-edge (DE) blade

This is the format slipped into a safety razor. The edge is very thin, thus more susceptible to dulling. An economical blade (Derby, Tiger, Bic) generally lasts 2 to 4 shaves before starting to tug. A mid-quality blade (Astra, Nacet, Shark) lasts 4 to 7 shaves properly. The best blades (Feather, Gillette Nacet Platinum) can last up to 7 to 10 shaves with a fine beard.

Consult our razor blade selection to compare available formats for your use.

Astra Superior Platinum razor blades in a 5-pack — medium DE blade ideal for daily use — Astra Superior Platinum — a medium blade that typically lasts 4 to 7 shaves in standard use

The cartridge blade (Gillette, Wilkinson, etc.)

Multi-blade cartridges last longer in use because the blades are better protected and their geometry distributes pressure more effectively. In practice, 5 to 10 shaves is a realistic range for most men. Some go up to 15 to 20 with a fine beard and soft water. But many men keep them too long precisely because they are expensive: a Gillette Fusion5 cartridge costs between $4 and $6 at Jean Coutu or Pharmaprix, which creates a natural reluctance to change it too soon.

The disposable razor

Designed for 1 to 3 shaves. Beyond that, it's uncharted territory. The metal and protection are inferior to a quality razor. Keep them for emergencies, not for a daily routine.

How water hardness changes things

This is the least known factor, but it is real. Hard water, very common in certain regions of Quebec, leaves limescale deposits on the blade after each rinse. These deposits significantly accelerate dulling.

If you live in a hard water region and your blades seem to degrade faster than usual benchmarks, it's not just an impression. A simple trick: after each shave, gently wipe the blade on a dry towel in the direction of the edge (never against it) to remove moisture and residue before they dry on the metal.

How to read the signs that a blade needs changing

Forget the calendar. The best indicator is the sensation during shaving.

A blade in good condition cuts effortlessly. It glides, doesn't catch, and provides a clean result quickly. A dull blade tugs at hairs rather than cutting them. You feel friction. You go over the same area two or three times. After shaving, you have redness or a burning sensation, which is unusual.

This is the clearest sign: if shaving hurts or tugs, the blade is finished. Continuing to use it doesn't save you anything—the result will be poor, and your skin will suffer.

Another less obvious sign: if you see rust on the blade, it goes straight to the trash, no discussion. Rust is not only unsightly, it increases the risk of irritation and infection on micro-cuts from shaving.

Shaving frequency changes everything

If you shave	Change your DE blade	Change your cartridge
Every day	Every 5 to 7 days	Every 1 to 2 weeks
Every 2 days	Every 1 to 2 weeks	Every 2 to 3 weeks
Twice a week	Every 2 to 3 weeks	Every 4 to 6 weeks
Once a week	Every 3 to 5 weeks	Every 6 to 8 weeks

These benchmarks are for a normal beard under standard conditions. Adjust downwards if you have a thick beard or hard water, upwards if your beard is fine and your water is soft.

Can you extend the lifespan of a blade?

Yes, with a few simple steps.

Rinse the blade with hot water after each pass, not just after shaving. Gently wipe it on a towel, moving it in the direction of the edge. Store your razor in a dry place, ideally upright or on a stand, rather than resting on the edge of a damp sink. Persistent moisture is the main enemy of stainless steel blades, even good quality ones.

For double-edge blades, some people wipe the blade on the back of their hand after use, which removes deposits and preserves the edge a little better. It's not magic, but it can add one or two shaves to a good blade.

The quality of the shaving cream also plays a direct role. A superior quality shaving cream or soap creates a thicker lubricating film between the blade and the skin, reducing friction with each pass. Less friction means less wear on the edge, and thus a blade that lasts a few more shaves.

What not to do: rinse with cold water (hot water removes foam and hair residue better), press hard to compensate for lack of sharpness (this damages the skin and dulls the blade faster), or dry it by wiping against the edge (this instantly dulls it).

To get the most out of a razor blade, traditional shaving with a good foaming product also makes a real difference. A quality shaving foam or soap better protects the skin and reduces friction on the blade.

The real economic calculation

With a DE blade at $0.30 changed every 5 to 7 shaves, the annual cost for daily shaving is around $15 to $25 CAD for blades. With cartridges at $5 changed every two weeks, it's more like $130 per year. The difference is real over the year, and the quality of the shave with a fresh blade is often superior.

This is one of the reasons why more and more men are turning to safety razors and DE blades. If you make this switch, our guide to choosing the right razor blade helps you find the right starting point for your beard and skin type. The low cost of the blade removes the psychological resistance to changing it regularly, which leads to better shaves and less irritation.

Frequently Asked Questions

Can you use a razor blade only once?

Yes, and some people do, especially with high-end DE blades like Feather, a very sharp blade used once, discarded, and replaced with a new one. At $0.30 to $0.60 per blade, it's economically viable and always guarantees a perfect edge. This is the choice of many traditional shaving enthusiasts.

How do I know if it's the blade or my technique causing irritation?

Try with a new blade. If the irritations disappear, it was the blade. If they persist, look at your technique: razor angle, pressure applied, number of passes. Both can cause the same symptoms (redness, burning, bumps), but the solutions are different.

Can a rusty blade be reused?

No. A rusty blade goes straight to the trash. Rust irreversibly weakens the edge, and contact of oxidized metal with shaving micro-cuts increases the risk of infection. It's not a risk worth a few cents of savings.

Does the brand influence the lifespan of the blade?

Yes, significantly. The coating (platinum, Teflon, chrome) and the quality of the metal alloy change how many shaves a blade supports before dulling. A Feather Japan blade generally lasts twice as long as a low-end blade, while cutting more cleanly. The slightly higher cost is often offset by the duration.

Looking for your next blades? Check out our razor blade collection, double-edge and half blades — available online.

Tags: durée de vie entretien FAQ lames de rasoir rasage traditionnel

Lames de rasoir : guide complet pour choisir la bonne lame selon votre rasoir

June 11, 2026

Razor Blades: A Complete Guide to Choosing the Right Blade for Your Razor

Double-edge, cartridge, or straight razor: our guide to choosing the right blade for your razor, skin, and beard.

Lames double tranchant vs cartouche : quelle est la meilleure option ?

June 11, 2026

Double-edge vs. cartridge razors: which is the better option?

Double-Edge or Gillette Cartridge? An honest comparison of the shave, comfort, price, and environmental impact to help you make the right choice.

Brosse à raser avec mousse et savon à raser non parfumé posé sur un comptoir de salle de bain

May 6, 2026

Itchy or prickly beard: effective causes and solutions

You’ve decided to grow out your beard. Good idea. Except for the past few days, it's been itching. Scratching. You find yourself scratching your chin in the middle of a meeting without really knowing why. This is normal — and most importantly, it's fixable. An itchy beard is probably the number one complaint among men who are starting to grow one. Here's what's really happening under your facial hair, and what you can do about it. Why does my beard itch? The main causes 1. Regrowth after shaving When you shave a hair with a blade, the cut creates a beveled, sharp end. As it grows back, this point rubs directly against the skin. The first 3 to 10 days are the worst. After this period, the point naturally rounds out, and the irritation subsides on its own. If you're used to a close shave, expect this phase. It will pass. 2. Dry skin under the beard A beard insulates the facial skin. This might seem protective, but in reality, it prevents natural hydration from circulating properly. In winter in Quebec — between the cold outside and the heating on full blast inside — the skin under the hair quickly dehydrates, and itching sets in. 3. Accumulation of sebum and dead skin cells The skin produces sebum 24/7. Without proper cleansing, this sebum accumulates with dead skin cells and dust at the base of the follicles. The result: irritation, small pimples, and sometimes beard dandruff, the famous "beardruff." Not very glamorous. 4. Using body shampoo on your beard This is the most common mistake. Body soap or regular shampoo is formulated for a different pH than that of the face. It strips away the skin's natural protective film, leaving it dry and reactive. Beards need their own specific products, period. 5. Completely dehydrated hair Beard hairs are thicker and stiffer than scalp hair. When dry, they become coarse and rub against the skin with every movement. Poorly nourished hair is mechanically more irritating. 6. A reaction to a product Sometimes the cause is simpler: a new product that doesn't suit you. Certain ingredients, such as synthetic fragrance, alcohol, and preservatives, can react poorly with some skin types. If the itching started at the same time as a new product, start by checking that. What you can actually do Change your beard cleaning routine Stop using body soap on your face. A shampoo formulated for beards respects the pH of facial skin and removes impurities without stripping everything away. Two to three washes per week are enough; excessive washing can also cause problems. Our selection of beard shampoos if you're looking for somewhere to start. Apply beard oil directly to the skin This is the most effective and most underestimated action against itching. Beard oil should be worked into the skin, not just on the hairs. A few drops on a slightly damp beard, massaged with fingertips down to the skin, nourishes the follicles, softens the hairs, and quickly calms irritation. Jojoba and argan oils have a good reputation for sensitive skin. If you don't know where to start, here it is: Beard oils — there's one for every beard type. Exfoliate once a week A gentle scrub under the beard once a week helps remove dead cells that block pores and allows subsequent products to penetrate better. There's no need for an aggressive exfoliant; the face is more delicate than the rest of the body. Don't neglect conditioner Beard conditioner is like hair conditioner: it seals the hair cuticle, making it softer and less irritating. Many men skip this step. That's a shame, because it really changes the texture of the hair in the long term. Beard conditioners — to be used after each wash. Brush regularly A natural bristle brush naturally distributes sebum along the hair and helps to orient it. After applying oil or balm, it's even better — it evens out the products and reduces friction. Hang in there during regrowth If you've just shaved and are starting from scratch, the first few weeks will be uncomfortable. It's mechanical, not pathological. Beard oil from the start helps make this period more comfortable. Avoid scratching, as this aggravates inflammation and can create small sores. When does it become something else? Most of the time, itching responds well to a better care routine. But if you have persistent redness, patches, significant peeling skin, or recurring pimples, it could be seborrheic dermatitis, folliculitis, or eczema. In this case, a dermatologist is more helpful than shampoo. Routine summary Step Product Frequency Cleanse Beard shampoo 2–3x / week Exfoliate Beard exfoliant 1x / week Hydrate skin Beard oil Daily Condition hair Beard conditioner After each wash Brush Natural bristle brush Daily An itchy beard is rarely an insurmountable problem. In most cases, proper cleansing and a few drops of oil are enough to solve the issue in less than a week. If you have doubts about which products are right for your skin, our in-salon barbers can also guide you—it's part of the job.

How many times can you use a razor blade before changing it?

There's no universal number, and that's normal