Research across the Australia and New Zealand shaving market found that 75% of men do not shave daily because it irritates their skin.
And yet every product launch for the past three decades has promised the same thing: more blades, smoother shave, less irritation.
Something does not add up.
In New Zealand, a six-pack of branded five-blade cartridges runs around $33. Men keep buying them. They push through the cost because, as one Auckland shopper put it, "there's no getting away from it, you have to shave."
But one Auckland woman buying blades for her husband put it plainly: "I can't believe the price of them. And I don't believe adding more and more blades is doing anything."
She was right. Here is why.
What Is Actually Happening When You Shave
The shaving industry has a term for the mechanism behind multi-blade razors. It is called the hysteresis effect, and they do not put it on the packaging.
The first blade grabs the hair and lifts it slightly out of the follicle. The second blade slices it while it is still extended and under tension. After the cut, the hair retracts back beneath the surface of the skin. That is two blades. Then comes a third, a fourth, and a fifth, each making contact with skin that has already been worked over.
Every additional blade increases the irritation without adding much value.
Once the tension releases, the follicle snaps back. The hair retracts below skin level, a process dermatologists call sub-dermal cutting. As it tries to grow back over the following days, it frequently cannot find the exit of the pore, and instead curves inward, piercing the follicle wall from beneath. Clinically, this is called Pseudofolliculitis Barbae. Most people call it razor bumps or ingrown hairs.
DermNet NZ, the clinical dermatology reference published by New Zealand dermatologists, confirms that razor bumps are most often found on the face and neck of men after shaving, and that they are directly associated with blade razor use and close shaving.
This is not a sensitivity problem. For most people, it is a mechanical one.
The Physics Are Simple
Consider the numbers. If you make three passes with a five-blade razor, your skin is being scraped fifteen times. With a single-blade safety razor, three passes equals three contacts. That is it.
DermNet NZ, advises men to aim for a one-pass shave, because going over an area multiple times is more likely to cause skin irritation. Five blades in a single stroke is, by definition, five passes happening simultaneously.
The burning sensation most men write off as their skin being sensitive is the inflammatory response to repeated micro-tears in the stratum corneum, the outermost protective layer. Strip that layer across fifteen contacts every morning and your skin does not have enough time to recover before you go again tomorrow.
Blade instability compounds this. Because most plastic cartridge blades are mounted on spring pivot systems, they flex as they move. Each blade contacts the hair at a slightly different angle on every stroke. Instead of cutting cleanly, they tug. The result is skin that is already inflamed, and a hair tip positioned perfectly to grow inward.
Why Did We End Up With Five Blades In The First Place?
Here is the part the shaving industry has never advertised.
By the early 1970s, the original patents on the safety razor and double-edge blade had long expired. Any manufacturer anywhere in the world could produce the same blades cheaply. The market was commoditised. Margins had collapsed.
The solution the major corporations landed on had nothing to do with dermatology. By creating complex plastic cartridge docking mechanisms, brands ensured that consumers could not purchase a competitor's blade. The cartridge became a lock-in device. Once you bought the handle, you were committed to buying that brand's refills for as long as you shaved.
To justify the price premium, they added blades. Not because clinical research supported it. Because additional blades gave the marketing something to talk about.
The Mach3, which introduced a third blade to the market in 1998, was backed by a $300 million marketing campaign and protected by 35 patents. The product was not engineered around skin biology. It was engineered around intellectual property.
Stuff.co.nz reported that New Zealand men hate paying for razor blades but keep buying them anyway, because the brands have made it the only visible option.That is the system working exactly as designed.
What A Cleaner Shave Actually Requires
Good shaving comes down to three things: a fixed blade, a consistent cutting angle, and fewer contacts with skin per stroke.
A blade that does not flex cuts cleanly. When the cutting edge is locked in place rather than mounted on a spring, every hair meets it at the same angle on every stroke. Clean cuts leave a hair tip that is more likely to grow back up and out of the pore rather than curling inward.
Cutting angle matters the way it matters with any precision tool. A blade set at around 30 degrees removes hair efficiently with minimal drag. A blade rocking on a pivot system delivers whatever angle the spring happens to settle on.
Minimal blade protrusion reduces the risk of cutting too close. A blade calibrated to extend barely beyond its guard, less than the width of a human hair, glides rather than gouges. Sub-dermal cutting becomes far less likely.
The CaliWoods Low-Waste Shave Kit
That is the logic behind the CaliWoods Low-Waste Shave Kit.
One blade. Fixed in place with no moving parts, no pivoting springs, no flex. Three passes means three contacts with your skin, not fifteen. The long copper handle gives you the leverage to control your angle consistently, which is the single biggest factor in reducing drag.
The blade is a standard double-edge format, the same type refined over a century of use. It does not belong to a proprietary system. When it dulls, you replace the blade alone, not a plastic housing with its lubricating strip half-used and two blades still functional.
A NZ man spending $33 on a six-pack of branded cartridges, at roughly one cartridge per two weeks, is spending close to $85 a year on blades alone, before shaving cream, before aftershave. Double-edge blades cost a small fraction of that.
The goal of the CaliWoods kit is not a hyper-close shave that cuts below the skin's surface. It is a clean shave that lets the hair grow back above it, which means fewer bumps, less burning, and a face that does not need a day off to recover.
To Sum Up
If you are finishing every shave with burning or persistent redness despite good technique and quality lather, the problem is almost certainly not your skin. It is the friction load your razor is placing on it, every morning, multiplied by five.
For anyone who has been spending more on cartridges hoping the next one will finally fix it, the CaliWoods kit addresses the root cause rather than adding another layer of engineering on top of a problem the industry created.
If you have not had issues with your current razor and simply want a setup that costs less and generates less plastic waste per year, that works too.