Accessories
RefillPen Labels
5.0· 14 verified reviews- Most orders ship same day
- Free shipping over $59
- Ready to use on arrival
- 7-day guarantee
Slide-on 3D-printed labels that tell you at a glance which solution is in each pen — with no adhesive and no sticky residue. They slide right onto your RefillPen so you never mix up your solutions.
No more sticky residue
Adhesive labels leave a gummy mess and peel off. These small circular labels simply slide onto the pen and come off just as cleanly — nothing sticky left behind.
Know what's in every pen
Running more than one solution? A quick glance tells you which pen is which, so you never mix them up. See every label name, and how one pen works with each, on our peptide pen compatibility page.
Invented and proudly introduced by Refillpen in November of 2025. © 2025-2026 Refillpen LLC — label design. All rights reserved.
Common questions
How do the labels attach?
They slide on and off the pen — no adhesive, so there's no sticky residue.
What are they for?
They identify at a glance which solution is loaded in each pen, which matters when you run more than one.
Reviews
I have never seen a product like this before so of course I had to have them. It’s crazy that something so small and simple can be so useful! I admit I’m one who makes sticker labels for my pens but these little guys have come in handy when I have to refill a pen and don’t feel like making a label. I just slide the product on and I’m good to go! Plus they make the pens more easily identifiable. I don’t have to pick each pen up to read each label. Nice work!
I absolutely love these. They snap on easily and come in so many nice colors. No stickers or sharpie markers! Thanks!
I absolutely love the refill pen labels. It helps me quickly identify pens and helps prevent any errors.
This is the absolute best idea ever for pens. Trying to remember what color pen has what in it was getting crazy. I had them written on my peptide calendar, but have to have that with you if you can’t remember… SOO, these labels are Simple Organization. ❤️
These pen labels are lifesavers and help guarantee I'm grabbing the right pen from the fridge. These are must haves if you have multiple pens. They also help create a lip so they can be hung up on the fridge.
Fast shipping and she even did two customized ones for me. I love it. I will be ordering more.2nd order just as good as the first. Highly recommended. Thank you again
FAST shipping, excellent customer service - easy to work with - great pricing and product. Thank you!
Love the pen labels, great colors and they fit nicely. Makes it easy to remember what the pen holds.
These are a great addition to my pens usually when reconning more than one. Saves time with labels
These labels are the best thing I could have bought . Now I can keep my pen organized.
They really helps me organize my pens. Maybe you can find a way to add the units.
Much easier and neater than writing my own labels!
Great products and fast shipping
These labels are very cool
Complete your setup
Want the whole setup? Build a Starter Kit →
Number Labels
Slide-on numbers so every pen shows your units at a glance.
Color: Pink
Label Stand
Keeps your labels stacked, upright and easy to grab.
Color: Black
3ml Individually Packed Glass Cartridge For Pen
The $1 sterilized 3 mL glass refill that fits every RefillPen.
Halo Cartridge Holder
A filling block that holds your cartridge steady for a clean, bubble-free fill.
Color: Black