Supply Single-Edge (SE) Blade Refills — 4-Pack, 32 Japanese Black Label, QuickLoad Injector, 10–12 Shaves

These are SUPPLY single-edge (SE) injector blade refills: 32 high-quality Japanese-made Black Label blades in four quick-load packs that fit the SUPPLY SE razor and deliver about 10–12 shaves per blade.

Engineered in Seki City, Japan, these Black Label SE blades combine traditional forging with modern stainless steel to offer a steadier edge and longer life than typical cartridge strips. Housed in our QuickLoad injector trays, the refills make blade changes fast and contact-free, with built-in storage for used blades so disposal is straightforward and safe.

How do these refills load into my SUPPLY SE razor?

Loading is a one-motion action designed to eliminate blade handling. Insert the injector’s key into the razor head, press or slide, and the fresh single-edge blade seats automatically without direct contact.

• QuickLoad injector tray holds 8 blades per pack.
• Key insertion and slide mechanism for fast reloading.
• No-touch blade transfer reduces risk and speeds the process.

What makes these Japanese Black Label blades different?

These blades are forged in a city known for cutlery craftsmanship and finished as thicker single-edge steel for improved stability. The added thickness gives a steadier stroke and extends usable life compared with thinner cartridge-style blades.

• Made in Seki City, Japan, using traditional and modern forging techniques.
• Twice the thickness of many cartridge strips for durability and control.
• Each blade offers an estimated 10–12 comfortable shaves, depending on hair and technique.

Are these safe and convenient to dispose of once used?

Yes—the injector pack includes a built-in slot to collect spent blades until the tray is full, so you never have to handle used blades. When the storage compartment holds all eight, the entire tray can be recycled according to local rules.

• On-board used-blade compartment keeps disposal tidy and safe.
• Tray designed for easy recycling when empty.
• Reduces risk of accidental cuts during disposal.

Will these blades suit sensitive skin and cartridge users switching to SE?

The Black Label SE is tuned to be more forgiving than sharper specialty SEs, making it a good entry point for men with sensitivity or those moving from multi-blade cartridges. Its steady edge and consistent glide help minimize irritation when used with proper technique and a quality shave routine.

• Designed as a forgiving single-edge option for daily comfort.
• Ideal for reducing drag and smoothing strokes compared with worn cartridge blades.
• Works best with compatible lubricants, prep, and light strokes for sensitive skin.

Who is this for: These SUPPLY SE Black Label injector refills are aimed at men who own the SUPPLY SE razor or any compatible single-edge system and want cleaner loading, longer-lasting Japanese blades, and safer disposal. They’re particularly useful for guys upgrading from cartridge razors, those seeking a steadier edge for longer shaves, or anyone looking for a low-fuss blade refill with built-in used-blade storage.