The chrome and the bamboo safety razors on their stands, on a marble basin top in morning light

Rated Excellent on Trustpilot

A neck you can run your hand up the morning after

Dermatologists recommend a single blade for razor bumps. Ours cuts each hair level with the skin, so fewer grow back in.

  • Lifetime warranty
  • A hundred days to decide
  • One blade, gentler on your neck
  • No ingrowns the day after

THIS RAZOR ASKS FOR A LITTLE CARE.

It needs a light touch and a few unhurried minutes. If you shave on autopilot, a cartridge suits you better. Weโ€™d rather say this now.

Engraving of Dionysos reclining on a rock, in gold line

Men who have already made the switch

  • โ€œMy neck used to look like it was covered in molehills. Take your time, donโ€™t rush, and now thereโ€™s nothing. A fantastic shave.โ€

    Ollie D.

    Verified on Trustpilot

  • โ€œA month in and Iโ€™ve not had a single ingrown hair; my neck is so much more comfortable. It takes a little getting used to.โ€

    Elliott L.

    Verified on Trustpilot

  • โ€œFantastic from start to finish. High-quality and plastic-free materials, beautiful and functional designโ€ฆ very intuitive, no nicks, not painful at all.โ€

    Ed W.

    Chose the bamboo handle

  • โ€œThe razor burn I used to get on my neck with cartridges is completely gone. After a few shaves Iโ€™m getting a perfectly close, comfortable result.โ€

    Brando B.

    Verified on Trustpilot

  • โ€œI have never been able to get rid of the razor bumps on my neck. After a few uses my razor bumps had disappeared and I no longer bleed when shaving.โ€

    Matthew C.

    Verified on Trustpilot

  • โ€œI used to get razor burn on my neck. It took a few shaves to get the hang of, but now I get a closer shave with no cuts and no rash.โ€

    Andy R.

    Verified on Trustpilot

  • โ€œI was unsure about safety razors, but I shouldnโ€™t have worried. No nicks from the off.โ€

    Terry

    Verified on Trustpilot

  • โ€œRazor bumps and ingrown hairs have been slowly going away. Much better than a normal cartridge razor, and the blades arenโ€™t too expensive to buy monthly.โ€

    Jake M.

    Verified on Trustpilot

  • โ€œI really suffer from curly ingrown hairs. I expected an uncomfortable shave and a rashy neck afterwards. Quite the opposite! Such a smooth, comfortable shave with no rash.โ€

    Kevin G.

    Verified on Trustpilot

  • โ€œUsed multi blade razors for years, always had shaving rash. Sceptical at first, but no shaving rash and such a close shave. Would never go back.โ€

    Anthony M.

    Verified on Trustpilot

  • โ€œAs long as I can remember I have suffered with irritated skin after shaving. About four shaves to get used to it. My skin feels fresh, and Iโ€™m not dreading my next shave.โ€

    Mark J.

    Verified on Trustpilot

  • โ€œNever used a single blade razor before. Need time to get used to it. Little cuts here and there, but if you take your time, a better shave than with anything else.โ€

    Tamas C.

    Verified on Trustpilot

  • โ€œThere were no unpleasant cuts or nicks. I get less shaving rash on the neck area.โ€

    Marcus

    Verified on Trustpilot

  • โ€œTook a little while to get used to it without cuts. Once you get the hang of it (light touch, let the weight do the work) itโ€™s much more comfortable. No bumps or irritation either.โ€

    Charlie P.

    Verified on Trustpilot

  • โ€œI was expecting a steep learning curve. If, like me, you have pondered switching to this type of razor for a while, rest assured it is worth it.โ€

    Rob

    Verified on Trustpilot

What is hysteresis?

  1. The first blade pulls the hair up. The rest cut it while it is raised.
  2. It springs back with its cut end below the skin, and grows back in.
  3. One sharp blade cuts it once, level with the skin. No hysteresis. No ingrowns.

Fig. 1 Five blades

One blade is enough

  • The head of the Kronos safety razor on a bamboo handle, close up

    Kinder to skin

    Cuts at the surface, not below. Less burn, fewer bumps. Backed by dermatologists.

  • The bamboo-handled razor laid out in its three pieces beside a double-edge blade

    Quality over quantity

    What barbers have used for centuries. No tug, calm skin.

  • A hand holding the chrome Kronos safety razor

    A ritual, not a chore

    A shave that takes a few minutes more, and becomes the five minutes of your day that belong to you.

1 / 3

Dermatologists recommend a single blade for razor bumps.

The British Association of Dermatologistsโ€™ leaflet on razor bumps says โ€œuse single bladesโ€, and the Kronos Safety Razor is a single blade.

British Association of Dermatologists, patient leaflet

What each razor leaves under your skin

A plastic cartridge razor, close up
The head of the Kronos chrome safety razor, cut out
Five-blade cartridge Kronos
Cuts level with the skin No Yes
Hysteresis Yes No
Lasts a lifetime No Yes

There is a reason why dermatologists recommend a single blade.

The part that nicks.

A blade nicks at its corners. Kronos encloses them; only the edge meets skin.

A typical safety razor head; the blade's corner stands clear of the cap
The Kronos razor head laid over it; the blade's end sits inside the head

Fig. 1. Typical DE Razor Fig. 2. Kronos

Enclosed blade design

โ€œIโ€™ve tried other safety razors and still managed to slice & dice my face. Five shaves in with this one & thereโ€™s not a single cut.โ€
Stuart G.

In their own words

Unprompted comments left for us in public.

Your first shave in three steps.

  1. Know what you're holding

    Three parts, one blade. The guard shields the blade. The head sets the angle. The handle carries the weight.

  2. Let the weight work

    Don't press. The razor is heavy enough. Hold it like a pen and let it glide.

  3. Use short strokes

    An inch at a time. Lift, move down, go again. Keep the skin taut.

“The trick is don't treat your morning shave as a chore to be rushed; look upon it as a pleasure, take your time.”
Tony R., verified buyer

Read the full guide

Three things men ask first

  • Will one sharp blade cut me?

    The corners, the part that nicks, sit inside the head. No pressure, short strokes, and only the edge meets skin.

    @neiltoye, asked how often he cuts himself: never.

  • Is it the razor, or my routine?

    The bump is a hair cut below the surface. Balms work on top of it. Only the razor decides where the hair is cut.

  • How long does it take?

    Five minutes, after a week. The first week is slower. That is the trade, and we would rather say so.

Everything else people ask

The full rating, including the reviews that are not five stars, and the questions that come up after them.

5 stars 77%
4 stars 8%
3 stars 4%
2 stars 4%
1 star 7%
The Kronos Safety Razor is rated 4.3 out of 5, Excellent, on Trustpilot across 244 reviews (read 4 October 2026).

The long answer

What five blades do to skin

The front blade lifts each hair away from the skin. The blades behind it cut, and the hair ends up cut below the surface. It springs back under the skin and grows back in. The bump is what you see a day or two later.

One blade cannot do that, because there is nothing in front of it to lift the hair. It cuts where the hair leaves the skin and nothing is left underneath. It is the shape of the razor, nothing you could put in a tube.

Why the routine cannot reach it

Balms, scrubs and cooling gels work on the surface. The hair that causes the bump is below it, and it was put there by the razor. That is why a drawer full of aftershave has not changed much.

Lather still matters, because a blade should glide. But the thing that changes what happens under the skin is where the hair gets cut, and only the razor decides that.

What it asks of you

It asks more of you than a cartridge does. Short strokes, no pressure, and about a week before it becomes second nature. If you want a two-minute shave you can do while thinking about something else, this is the wrong razor, and we would rather say so now.

With the right technique, a single sharp blade is no more likely to cut you. The corners sit enclosed, the part that nicks, so only the safe edge meets skin. Sharper means less pressure, and less pressure means less irritation.

Why do I get ingrown hairs and bumps?

Multiple blades pull the hair up and cut it below the skin, where it grows back trapped. The Kronos Safety Razor cuts it level with one blade, which is what dermatologists suggest for razor bumps.

What about the neck?

Hair on the neck grows in more directions than on the cheek. Map it once, shave with the grain, and hold the skin flat with your other hand. Never against the grain on the first pass.

How long does it take to learn?

About a week of daily shaves. The first few are slower and you will go over nothing twice.

Can one blade really beat a five-blade cartridge?

With one sharp edge, the Kronos Safety Razor cuts the hair in a single clean pass. Five blades drag it over five times. Fewer passes, a closer finish, nothing underneath the skin.

Do I have to use Kronos blades in a Kronos razor?

No. A Kronos razor takes any standard double-edge blade, and Kronos blades fit any double-edge razor.

A hundred days to make up your mind

Shave with it properly, for as long as you like. If it turns out not to be for you, send it back.

A lifetime warranty when you keep it