All about Pens

Benefits

🖊️ Benefits of Using Injection Pens for Peptides

💉 1. Precise Dosing

Pens allow for accurate, repeatable dosing down to the unit.
Great for peptides that require micro-dosing or titration (e.g. CJC-1295, Semaglutide, etc.).

🧼 2. Cleaner & More Sterile

Reduces the need to puncture the vial multiple times.

🕒 3. Quick & Convenient

No need to draw up each dose with a syringe.
Just dial, click, and inject — perfect for busy routines or travel.

🙈 4. Discreet & Low-Key

Pens look like diabetic insulin pens — much less conspicuous than vials + syringes.
Easy to carry, easy to store, and no “mad scientist” setup required.

💥 5. Less Waste

You’re only using one needle per injection, and there’s no wasted volume left in syringes.
Better control of your total peptide usage.

💪 6. User-Friendly for Beginners

Great option for those new to injections.
Dialing a dose feels way less intimidating than measuring a syringe to the decimal.

🌡️ 7. Compatible With Multi-Dose Peptides

Especially helpful for peptides used over time (like GLOW, Cagri, Semaglutide, etc.).
Makes daily or weekly injections smoother and more sustainable.

How to Fill a Pen Cart with Peptides

Supplies

Your reconstituted peptide (in a sterile vial)
An insulin syringe (1 mL/cc is ideal)
A pen cartridge (compatible with your injection pen)
Alcohol swabs
Gloves (optional, but recommended)

Steps to Fill Your Pen Cart

1. Draw Up Your Peptide

Swab the vial’s rubber stopper with alcohol.
Use your insulin syringe to slowly draw up the peptide.
- Tilt the vial slightly to avoid drawing air.
- Go slow to avoid bubbles.

2. Prep the Pen Cart

If the cart has a rubber stopper or opening, clean it with alcohol.

3. Venting (Optional but Helpful!)

Before injecting peptide into the cart, insert a separate sterile needle into the rubber stopper to allow air to escape as liquid enters.
- This prevents pressure buildup and backflow.
- Remove the venting needle after filling.

4. Transfer the Peptide

Insert the insulin syringe, with your reconstituted peptide in it, into the cartridge.
Slowly depress the plunger to fill the cart.
- Go slow — no foaming or geysers, please.
- Stop before it's fully filled; leave a small air gap if the cart requires it.

5. Purge the Cart (Remove Air Bubbles)

Push a small amount of air or liquid out (using the syringe or by gently pressing the stopper) to purge trapped air.

5. Store or Load

Either store the pen upright in the fridge or load it into your pen immediately.
Label it if you’re dealing with multiple peptides.