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 365 reviews
servio medina
Safe to say

As safety razors go, this is my favorite. As razors go, this is my favorite. It works. Well. Form and function hit the sweet spot. Feels good to shave. Feels good not to get nicked (note: had been using safety razor for 2 years and still nick now and then). Subscribed with a larger quantity / less frequently : saving money and hassle.

Would I do it again? Yes.
Do I recommend it? Yes.
It = Supply razor and blades.

Your review definitely makes us feel good too Servio -- Thank you so much! Let us know if there is ever anything we can do for you!

I am thoroughly impressed!

Having tried quite a few double edge (DE) safety razors, the Supply Edge Pro with adjustable blade exposure is light years ahead of anything else I’ve ever tried. The closeness of the shave is like nothing I’ve experienced. I haven’t even dialed the blade setting in, and I was in a bit of a time crunch and the results were still stellar. I am a believer!

I'm so thrilled to hear that you're impressed with your PRO razor -- it really means a lot! If ever there is anything we can do for you, just let us know!

Steve Cordle

Black Label Blades

Thank you so much for the 5-star review Steve! Please don't hesitate to let us know if there is ever anything we can do for you!

Jeff McClintock
I was skeptical

I was on my patio pounding down some beers after an impressive lawn mowing and while heating my briquettes up I was scrollin and trollin Instagram when this supply ad came up. Boy howdy the marketing team sold me or I was drunk, probably both. I wanted my face to look as sexy as my lawn I smashed the link and some other buttons and it got ordered. I seared my steaks and finished my banquet beers and passed out. Next morning I went to the kitchen, grabbed the percolator coffee pot and shoved into last night's coals. It was brewing, I admired my lawn and the remnants of a night in the barracks knowing that the recycling dude probably wants to high five me and down a few with me. Realizing my wife was unimpressed with me and started nagging I did what a hungover man does, pulled out my phone and acted like something important was happening. I saw a wall of of emails from this supply company and thought, now what did you buy then it came to me as bright as the sun on my dark green grass. I bought a shaver. Now I been using my grandfather's Gillette safety razor he had in Korea, this things seen more blood than than a bad surgeon. It's savage and not for the weak spirted but it's sentimental to me and I'm kinda cheap in regards if it doesn't need to be replaced then don't. Anyway, a few days later (today 03-15-23) I got it and used it. This things freaking awesome, it feeds in like an M4, it is easy to control in my worn out hands, it's appearance could be a bit intimidating so the wife won't attempt to shave her legs with it and my mother inlaw won't want to shave her beard with it either.
It's clean cutting, it doesn't mangle my skin and now I can see if my neighbors will like me more now that I look 10 years younger and sliced up like I got into brawl with wolverine. Seriously it's that nice. I feel like I got pretty lucky from my intoxicated shopping experience I'm already looking at other products to buy from them. My only negative to this, I wish it was made in the USA. Alright gents I'm off to do what a crayon eater does by being irresponsible and reckless.

Thank you so much for sharing your story and definitely your experience so far with your SE Starter Set! I'm so happy to know that you are getting clean shaves with it -- Please don't hesitate to let us know if there is ever anything we can do for you!

Ryan Stewart
Where Have You Been All My Life???

I’ve been shaving with multi-blade cartridge razors for 25 years. I made a short foray into DE safety razors, which was unsatisfying. I’ve also been head shaving for 10 years. I have used a lot of different razors over the years I search of the perfect shave, but couldn’t escape occasional neck irritation and ingrown hairs. The Supply SE solved my problems. I seriously had to check whether the blade was inserted and actually cutting hair. YOU CANNOT FEEL THE BLADE! Never fear though, it’s doing its job. I’m not kidding guys and gals. If you want to end your shaving woes once and for all, buy the SE.

Mitchell Fessler
Top notch

Great blades and system. Supply will be my go to for all my shaving needs from now on.

Thank you so much for the 5-star review and for making us your go-to brand for your shaving needs! Let us know if there is ever anything we can do for you!

Max A.
Top quality blade

The blades are phenomenal. They give a clean ultra-smooth shave in a third of the time it took with my previous brand!


I have had my supply razor for about 4 years now and didn't think it could get any better. Well let me tell you the black label has given me the closest shave next to a barber straight razor. Amazing give em a try, you will be absolutely amazed.

Very smooth and efficient

My facial skin knows it.
I experienced very smooth shaving.

I'm so happy to hear that Younsoo -- I appreciate you for sharing your experience so far! Let us know if there is ever anything we can do for you!

Best Blades

I've had a Supply razor for 4-5 yrs, and whatever they upgraded with these blades has been a game changer. Smoother strokes, improved feel and quality of the shave, and even easier to install.

Thank you so much for the 5-star review Chad -- I really appreciate it! If ever there is anything we can do for you, just let us know!