Such a great experience with Pepology! My order arrived in Perth much faster than expected and the customer service was amazing from start to finish. Really impressed with how smoothly everything went. Thank you team!
Jessica M.
Oct 2026
Free express shipping over $200
Stack & Save
The more peptide vials and kits you stack, the more comes off your cart. No code, no catch. The discount builds automatically as you add, all the way to 20% off. Research use only.
10%
2 units
15%
3 units
20%
4+ units
How the saving stacks
Each peptide vial or pen kit counts as one unit. Reach a tier and the discount comes off your single vials at checkout, no code needed.
2 units
10%
off your vials
3 units
15%
off your vials
4 or more units
20%
off your vials
Best valueApplied automatically at checkout
Vials and pen kits both count
Free express shipping over $200
Build your stack
The most in demand research compounds, each independently tested and documented. Add any two to start saving.

Don't take our word for it
Saving more should never mean trusting less. Every batch you stack is tested by Novagen, an independent third party laboratory, and the certificate is published so you can check the exact batch you receive.
Ready for the bench
Stack the compounds, then add the lab supplies to work with them. Bacteriostatic water and reconstitution equipment sit alongside the catalogue, and our reconstitution calculator does the concentration maths for you.
Every vial can be bought on its own or as a Full Pen Kit (vial plus the reconstitution pen kit, +$75).
OpenBacteriostatic water and lab equipment, catalogued for research handling.
OpenWork out the concentration of a reconstituted vial for laboratory measurement.
OpenVerified reviews
Swipe to see more
Learn before you stack
The Knowledge Centre has plain-English guides on testing, verification and research handling, plus a peptide reference and the reconstitution calculator.
Add two peptide vials or kits and the saving begins. Documented, independently tested, and dispatched same day from the Gold Coast.
All products supplied by Pepology are for laboratory research use only. They are not for human or animal consumption, and no therapeutic, medical or performance use is described or implied. Stack & Save applies to research peptide vials and kits; equipment and water are excluded.