Black Label Blades
Black Label Blades
Black Label Blades
Black Label Blades
Black Label Blades
Black Label Blades
Black Label Blades
Black Label Blades
Black Label Blades
Black Label Blades
Black Label Blades

Black Label Blades

Crafted in Japan for optimal sharpness.

Sale price$8
Shipping calculated at checkout.

Our Black Label Blades Will Be Back The First Week of October
But don’t skip your shave while you wait

Click below to try our original White Label Blades

Supply warranty, free shipping and 100 day free trial

Our Black Label blades are made in Seki City, where state-of-the-art technology fuses with ancient Japanese forging skills to produce the most renowned shaving blades in the world. Pair with a SUPPLY razor for the ultimate shave.

8 perfectly crafted blades come in our QuickLoadTM cartridge. You’ll get that tactical reload feeling every time you load a new blade.

8 Injector Blades (90-Day Supply)


High-Carbon Stainless Steel

Chromium + PTFE

Length: 38.1 mm (1.5")
Cutting Edge Length: 36.3mm (1.43")
Width: 8 mm (.314")
Thickness: .25 mm (.025")

What type of blades are these?
The Single Edge accepts standard "injector" style blades. Each razor ships with a magazine of 8 stainless steel, Japanese-made injector blades. A pack of blades typically lasts up to three months and only cost roughly 10 cents per shave.

Are they proprietary?
Nope! These blades have been in production for 100 years and can be easily purchased on our website ,, and more.

How long do they last?
Everybody changes out their blades at different intervals due to the fact that our skin, hair, and preferences are all different. That said, most customers easily get 8 to 10 shaves out of each blade. A single pack of eight blades can last up to three months if you shave 5-6 times a week.

How are these blades different from DE blades?
Our blades are twice as thick as blades that are used in both multi-blade and single blade razors, which means they flex less, they cut cleaner, and they last longer. Fun fact: injector blades were originally invented by Schick in the early 1900’s. They quickly developed a cult following as a safer alternative to the Gillette double edge blades.

How do I dispose of used razor blades? Do they create waste?
Each Single Edge ships with a magazine of 8 stainless steel injector razor blades. If you look at the back of the pack, you will see a nifty opening to insert used blades. No sharp objects lying in your trash can or recycling bin unattended or waiting for an unsuspecting toddler or pet to find. Once you are through with all of your blades, you can recycle the entire magazine, blades and all. Safe and better for the environment!

1. Insert the key from your blade pack into the head of the Single Edge Razor.

2. Push the slider across - toward the razor - to inject a blade.

3. You just swapped out your blade in less than 2 seconds without touching the actual blade!

Supply press mentions
Pair of hands reloading the supply Black label blades
safe & easy
Butterfingers? No Problem

All other single-blade razors force you to unwrap and load thin, sharp blades by hand. That's why we designed a custom-built injector mechanism which keeps your fingers safe, and enables lightning-fast blade changes.

No Cutting Corners – Only Hairs

Unlike some of our competitors, we refuse to scrimp on materials. Single Edge blades are twice as thick as standard razor blades, meaning that each one stays sharp for longer.

Man shaving with the supply SE razor
Supply Quickload cartridges
One Cartridge, Three Months of Shaving

You're getting a lot of firepower in one little package. Eight blades will keep you fresh-faced for an entire summer (or winter, or rainy season). It's all recyclable, and there's a blade disposal slot in the back so you never need to fill your trash with sharp objects.

Customer Reviews

Based on 264 reviews
Jeffrey Linehan

These blades are sharp, way tougher than the white ones which were already good. I will say though, you still don’t get nicks from them despite the sharpness. Great product. Recommend? Defo

David M Hunt
Great shave!!

the blades are excellent and last for a lot of shaves, ..i believe i have only changed the blade once in 4 months, i shave 3-4 times a week, the only issue i have is getting under my nose ..but thats the razor design vs my nose design... the blades themselves are great!!

Richard Carter
Great quality

Exactly as promised in the ad

Guillermo L Cantu
Great shave

I can almost shave daily if I wanted or needed to. Before this, I had to really plan my shaves on my calendar.

John Stafford
Great blades. Great shave

After using 5 blade razors for years and working through some irritation problems, I ran across Supply and decided to give safety razor blades a try. I can’t believe I honestly look forward to shaving! This is the most comfortable shaving system I’ve ever used and I’ve tried Gillet, Harry’s, Dollar Shave Club, you name it. Believe me, this is the way to go! Have fun

Joseph Raymer

Quick delivery of product. Thank you.

Adrian Pamintuan

I Love how the blades are so sharp they glide effortlessly, and they last pretty much a whole week! I Love em!

Black Label Blades and Supply Razor perfect combination!!

I'm a 66 year old man and must say these blades are the best blades by far I've ever used. Supply has brought back old school shaving, but to a whole new level. They've done their homework and fixed all the little details and upgraded a single edge razor and blades (I must say again) to a whole new level! It's simplicity at it finest. Easy to clean. No more clogged 5 blade razor! And also gives you a much closer shave! Thanks Supply!!

Peter Sergi

Black Label Blades


Black Label Blades