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

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 mention logos


Butterfingers? No Problem.


No Cutting Corners – Only Hairs


One Cartridge, Three Months of Shaving

Customer Reviews

Based on 234 reviews
Joel Hawdon
Best Blades

These blades deliver a close and consistent shave leaving little to no irritation!

Melissa Mollock
Close shave

I am new to safety razor shaving. Being a female I was very intimidated about shaving such large areas such as my legs. These blades have given me the closest shave I've ever had.

Juan Elmudesi
Must Use!

Haven't been a fan of shaving, but the Supply Razor is probably the best Shaving tool out there in the market. The blades are phenomenal.

Team Ish
Black label blades are awesome!

Fantastic blades. Even smoother shave than the previous blades. Won't be going back to anything else.... ever. Thank you!

Anthony Warrington

Black Label Blades

Ted Witt
Smooth, effortless shave

Using these blades with the SE razor give me a perfect shave every time!

Good quality, even better pricing

I’ve made the switch from your common razor blade and I feel pampered by both the quality and affordability of these razors. No issues so far, great product!

Continued Perfection

I’m not sure I would trust another company to supply this high of a quality injector blade. Consistent blade quality and superb longevity.

Dylan Quintal
Yielding Japanese steel like a modern samurai

As I load up my American razor with Japanese steel, I don’t just feel like a patriot—I feel like a citizen of the world!

Jack Miller
A nice sharp blade that’s easy to interchange

Shaving with a single blade takes a bit of getting used to, but after going through the multi-pass process, I’ve had the closest shaves of my life. These blades are wonderfully easy to switch out.