Peptide Pen Refills

Peptide pen refills provide a convenient and efficient way to continue using compatible pen devices without replacing the entire unit.

At PTLabs, our 3ml peptide refill cartridges are designed for precision, consistency, and ease of use within research environments. Each refill is prepared with a focus on quality and reliability, offering a streamlined solution for ongoing research applications.

Our range includes GLP-related compounds such as Tirzepatide, Retatrutide, Cagrilintide, BPC157, Tesaamorelin, GLOW, Mots-c and NAD+ in refill cartridge format, compatible with standard peptide pen systems.

Browse our collection of peptide pen refills with fast and discreet UK shipping available.