Pen Refills

Buy premium refill cartridges in Ireland from Emerald Labs.

Compatible with all Emerald Labs Reta and GHK CU Pens, our refill cartridge range offers a quick and convenient replacement without needing to purchase a new pen.

Simply select your preferred refill from the options above:

Reta Pen Cartridge – 30mg

GHK CU Pen Cartridge – 100mg

Designed for simplicity and consistency, each cartridge is ready to install into your existing Emerald Labs pen for a seamless replacement experience.

*As a refill-only option, this product includes the replacement cartridge only, allowing you to continue using your existing pen and accessories.*

Prepared and stocked in Ireland for fast dispatch, discreet shipping and reliable support.

✔ Batch Tested

✔ Premium Quality

✔ Irish Stock

✔ Discreet Shipping

Questions? WhatsApp support available.

For research use only.

Not intended for medical use or human consumption.