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.
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 300 reviews
Jesus Cazares
Best shave ever

Excellent and elegant product that gets a smooth shave every time.

Kyle McLaughlin
Still the best

These blades are fantastic and have lasted longer than most other injector blades I've used. The easy load and slot to dispose of them is such a load of my mind, too.

Robert Friedrich
Excellent blades

I probably get about 7 shaves per blade

Peter Moreno

Black Label Blades

Wilynn Clinkscales
Well designed and smooth.

The first single blade razor since Gillet stopped making them in the seventies.
A reliefe from the five blade system.

Robert Purdum
Great blade

I have been using these blades for a couple of weeks now and while I thought the old ones (white dispenser) were fine, these are a new level of excellence. Smooth, close, effortless shave. Fantastic!

David Barattucci

Black Label Blades

Sharp, simple, superb

It works as advertised and the blades are fantastic. Nick free design of the razor pairs nicely with the blade.

Loek Hopstaken
A close shave that lasts a day

These super sharp blades provide a close shave that lasts a day. They last much longer than the ones I was used to. After 55 years of shaving, this is nothing short of a revelation. Thanks!!!

Mike Falanco
Great products

Absolutely the best razor I ever shaved with! The team is also very responsive.