1 / 4

Great quality cartridges! Super easy to fill, and the plunger moves smoothly for precise dosing. Knowing they come individually sealed in sterilization pouches gives total peace of mind for daily medical/peptide use.

Harry B.United States

These 3ml pen cartridges are exactly what I needed. The sterile packaging was intact, and the glass construction feels durable and premium. It fits perfectly in my pen device without any leaks or rubber stopper issues. Highly recommend!

Sofia L.Verified 3ML Pen Cartridge customer

Solid build quality and clear glass. The seal on the rubber stopper is tight and secure, so there's no fear of contamination. Fits standard 3ml injector pens seamlessly. Will definitely order again!

Manuel N.UK

TRUSTED BY 30,000 PEPTIDE USERS WORLDWIDE

3ML Pen Cartridge

Name: 3ML Pen Cartridge
Price: 8.49 USD

5 people checking out now

Less than 1% claim our 30-Day Money Back Guarantee

We stand behind PeptiCool™ with a full 30-day satisfaction guarantee. If it's not right for you, we'll make it right.

30 day money back

Worldwide shipping

insured

Product Description

Keep your pen setup ready with 3mL replacement cartridges, compatible with our V1, V2, and V4 pens. Each cartridge is steam-sterilized and individually sealed, with a secure design that helps prevent leaks.

✓ 3mL Capacity — Made to fit your compatible pen.

✓ V1, V2 & V4 Compatible — Easily find the right replacement for your setup.

✓ Individually Sealed — Each cartridge stays packaged until you’re ready to use it.

✓ Steam-Sterilized — Sterilized before individual sealing.

✓ Leak-Resistant Design — Helps keep contents securely contained.

Available in packs of 2, 4, or 6 cartridges.

Cartridges only. Pen sold separately.

Processing & Shipping

Please allow 1-2 Business Days for us to process and ship your order. Estimated Arrival Time: 7-12 business days.

Medical-Grade Glass

Crafted from high-clarity, durable borosilicate glass to maintain liquid purity and deliver a smooth, reliable plunger glide every time.

Pre-Sterilized & Sealed

Individually packed in heat-sealed sterilization pouches with Steam/EO indicators, ensuring absolute safety and a 100% sterile condition upon opening.

Universal Pen Fit

Engineered with standard 3mL dimensions and a tight aluminum cap seal to fit seamlessly into most major reusable injector pens without leaks.

Zero-Hassle Reload

Pre-fill your cartridges ahead of time to eliminate messy draws and liquid waste during your daily protocol—at home or on the go.

Join over 10,000+ Happy Customers

Excellent 4.8 | 10,000+ Customers

Marcus Vance

"Exceptional Glass & Perfect Fit"

These 3mL glass cartridges are exceptionally well-made. The glass is crystal clear, and the rubber plunger glides effortlessly inside my pen injector without any sticking or friction. Pre-filling them makes my morning protocol seamless and accurate every time.

Sarah Jenkins

"Game Changer for Daily Dosing"

Switching to these pre-sterilized cartridges completely simplified my daily routine. No more struggling with manual syringe draws or worrying about air bubbles. Having each cartridge sealed in its own pouch provides total peace of mind for safety.

David Miller

"Leak-Proof & Easy to Fill"

I was skeptical about finding cartridges that fit my pen properly, but these fit like a glove! The aluminum cap creates a tight, leak-proof seal, and filling them is straightforward. It saves me so much time during the week.

Elena Rostova

"Top-Tier Sterile Packaging"

The medical-grade packaging with the built-in sterilization indicators is a huge plus. The borosilicate glass feels premium and far safer than plastic alternatives. Highly recommend these for anyone using a 3mL pen system!