TL;DR: The GH secretagogue cluster is the densest ladder in our EU price index — nine compounds, fifteen priced vial rows, and a per-mg spread of 3.3x from top to bottom. The cheapest milligram in the group is GHRP-2 or GHRP-6 at 10mg (€3.30/mg); the dearest is a 2mg hexarelin or sermorelin vial (€11.00/mg). Five vial-size breaks are measurable, and the three steepest are hexarelin 2mg to 5mg (-47.3%), sermorelin 2mg to 5mg (-41.8%) and GHRP-2 5mg to 10mg (-31.3%). But a bigger vial is only cheaper per mg if you use it before the reconstituted window closes — and at low daily doses that 47% discount collapses to under 6%. Full table below, then hand it to the cost calculator.
The whole cluster, one ladder
Every price on this page is a build-time snapshot of listed EU research-supply pricing, published as the EU peptide price index. Cost per mg is just listed price ÷ vial strength — no modelling, no extrapolation.
| Compound | Vial | Listed price | Cost per mg |
|---|---|---|---|
| GHRP-2 | 10mg | €33.00 | €3.30 |
| GHRP-6 | 10mg | €33.00 | €3.30 |
| Tesamorelin | 20mg | €85.00 | €4.25 |
| CJC-1295 (no DAC) | 10mg | €44.99 | €4.50 |
| GHRP-2 | 5mg | €24.00 | €4.80 |
| GHRP-6 | 5mg | €24.00 | €4.80 |
| Tesamorelin | 10mg | €49.00 | €4.90 |
| Ipamorelin | 10mg | €54.99 | €5.50 |
| Hexarelin | 5mg | €29.00 | €5.80 |
| Sermorelin | 5mg | €32.00 | €6.40 |
| Tesamorelin | 5mg | €35.00 | €7.00 |
| CJC/Ipamorelin blend | 10mg | €74.99 | €7.50 |
| CJC-1295 DAC | 5mg | €38.99 | €7.80 |
| Hexarelin | 2mg | €22.00 | €11.00 |
| Sermorelin | 2mg | €22.00 | €11.00 |
One of each priced vial is 114 mg of peptide for €601.96 — a blended €5.28 per mg across the cluster. That number is the useful mental anchor: anything above it, you are paying a premium for either a small format or a specific molecule.
The breaks worth planning around
A “break” here means the same molecule listed at two sizes, so the per-mg drop is measured rather than inferred. The cluster has five distinct steps (six rows, since the two GHRPs carry the same ladder and tesamorelin carries two steps of its own).
Listed EU price-index figures. Violet is the smaller vial, teal the larger. Tesamorelin is the only three-rung ladder in the cluster. GHRP-6 mirrors GHRP-2 exactly and is omitted for clarity.
- Hexarelin 2mg to 5mg: -47.3%. €11.00/mg down to €5.80/mg. The steepest single step in the cluster, and it costs only €7.00 more in absolute terms — €22.00 versus €29.00 — for two and a half times the peptide.
- Sermorelin 2mg to 5mg: -41.8%. €11.00/mg down to €6.40/mg. Same €22.00 starting price, €10.00 more for the 5mg.
- GHRP-2 and GHRP-6 5mg to 10mg: -31.3%. €4.80/mg down to €3.30/mg. Buying 10mg as two 5mg vials costs €48.00; the single 10mg vial is €33.00. You pay €15.00 for the privilege of splitting it.
- Tesamorelin 5mg to 10mg: -30.0%. €7.00/mg down to €4.90/mg. Two 5mg vials are €70.00 against €49.00 for the 10mg — a €21.00 penalty for the same 10 mg.
- Tesamorelin 10mg to 20mg: -13.3%. €4.90/mg down to €4.25/mg. The shallowest step in the cluster, and the only second doubling anywhere in it: €98.00 as two 10mg vials against €85.00 for the single 20mg, a €13.00 saving.
Averaged across the five measurable steps, moving up one size costs about 32.7% less per mg — almost exactly the -33% mean the GLP-1 cluster posts on a single doubling, but with a far wider spread here, from 13.3% to 47.3%. See the retatrutide cost-per-mg piece for that comparison.
The catch: cheaper per mg, only if you use it
Listed cost per mg assumes every milligram gets drawn. GH secretagogues are dosed in micrograms, usually more than once a day, and reconstituted peptide holds roughly three to six weeks at 2–8 °C depending on the vial. That combination is where big-vial economics quietly fail.
Take hexarelin, the steepest break in the cluster. Our catalogue reference for the 5mg vial is 2mL of bacteriostatic water, giving 2.5 mg/mL, with a stated reconstituted window of three to four weeks.
At 200 mcg twice daily (400 mcg/day), that 5mg vial runs 12.5 days. Comfortably inside the window, nothing is stranded, and the full €5.80/mg is realised. The discount is real.
At 100 mcg once daily, the same vial holds 50 doses — 50 days. The window closes at roughly 28. You use 2.8 mg and discard 2.2 mg, so your effective cost is 29.00 ÷ 2.8 = €10.36 per delivered mg. The 2mg vial at 1.00 mg/mL runs 20 days at the same dose, finishes clean, and delivers its full €11.00/mg. A 47.3% headline discount has become a 5.8% real one.
The same test applied to GHRP-2 is gentler but points the same way. The 10mg vial in 3mL is quoted at four to six weeks reconstituted. At 200 mcg three times daily (600 mcg/day) it lasts 16.7 days and the €3.30/mg stands. At 100 mcg once daily it would need 100 days; capped at 42, you deliver 4.2 mg for €33.00 = €7.86/mg. The 5mg vial carries a shorter three-to-four-week window, so at 28 days it delivers 2.8 mg of its 5 mg for €24.00 = €8.57/mg. The 10mg still wins, but by 8.3% instead of 31.3%.
Where the ladder flattens: tesamorelin
Tesamorelin is the compound most likely to justify a big vial, because it is dosed in milligrams rather than micrograms — 1–2 mg per day in the catalogue reference. At 2 mg daily, a 10mg vial empties in five days and a 20mg vial in ten, both comfortably inside the three-to-four-week reconstituted window. Waste is not the constraint here; unit price is.
It is also the only compound in the cluster with three priced rungs, which makes it the one place where a second doubling can be measured rather than assumed:
- 5mg at €35.00 = €7.00/mg
- 10mg at €49.00 = €4.90/mg — a -30.0% step
- 20mg at €85.00 = €4.25/mg — a further -13.3%
End to end that is -39.3% from 5mg to 20mg, but the shape matters more than the total: three quarters of the saving is banked on the first doubling, and the second one returns less than half as much. Twenty milligrams bought as two 10mg vials is €98.00 against €85.00 for the single 20mg.
The gap in the dataset is wider than most per-mg guides admit, though. Four compounds here have exactly one priced rung, so no ladder can be measured: ipamorelin, CJC-1295 no-DAC, CJC-1295 DAC and the CJC/ipamorelin blend all have smaller catalogue pages that carry no price. Sermorelin has an unpriced 10mg page too — a shame, since its 2mg-to-5mg break is the second steepest in the group. The full reconstitution grid for the high-strength tesamorelin formats sits in tesamorelin high-dose vial reconstitution.
The blend arbitrage
The CJC/ipamorelin blend is the one row where the per-mg figure changes a purchasing decision outright. The 10mg vial is 5mg CJC-1295 (no DAC) plus 5mg ipamorelin, listed at €74.99 — €7.50 per mg of total peptide.
Buy the components as separate vials instead: CJC-1295 10mg at €44.99 and ipamorelin 10mg at €54.99. That is €99.98 for 20 mg of peptide, or €5.00 per mg — and it gives you twice as much material.
Per mg of total peptide. The blend vial is 5mg CJC-1295 plus 5mg ipamorelin in a fixed 1:1 ratio; the component pair is a 10mg vial of each.
Put another way: 20 mg of separate CJC-1295 and ipamorelin costs €99.98. Twenty milligrams as two blend vials costs €149.98. The convenience of one draw instead of two costs €50.00, a 50% premium per mg. Whether that is worth paying is a real question — a fixed 1:1 ratio in one barrel is genuinely simpler — but it should be a decision, not an accident. The trade-offs are laid out in the CJC-1295 and ipamorelin blend guide, and the case for running them separately in CJC-1295 versus ipamorelin.
One honest caveat: no 5mg price exists for either component in our index, so a strict like-for-like 5mg plus 5mg comparison cannot be built. The €5.00/mg figure above is the blended rate of two 10mg vials.
What a milligram costs on the syringe
Per-mg pricing only becomes concrete when it lands on a plunger. Everything below uses each vial’s catalogue reference reconstitution, and a U-100 syringe throughout, where 1 unit = 0.01 mL. Concentration is vial strength ÷ BAC water; volume is dose ÷ concentration; units is volume × 100.
| Vial and BAC water | Concentration | Example dose | Draw volume | U-100 units | Cost per dose |
|---|---|---|---|---|---|
| GHRP-2 5mg + 2 mL | 2.50 mg/mL | 200 mcg | 0.08 mL | 8 units | €0.96 |
| GHRP-2 10mg + 3 mL | 3.33 mg/mL | 200 mcg | 0.06 mL | 6 units | €0.66 |
| GHRP-6 5mg + 2 mL | 2.50 mg/mL | 300 mcg | 0.12 mL | 12 units | €1.44 |
| GHRP-6 10mg + 3 mL | 3.33 mg/mL | 300 mcg | 0.09 mL | 9 units | €0.99 |
| Hexarelin 2mg + 2 mL | 1.00 mg/mL | 100 mcg | 0.10 mL | 10 units | €1.10 |
| Hexarelin 5mg + 2 mL | 2.50 mg/mL | 100 mcg | 0.04 mL | 4 units | €0.58 |
| Sermorelin 2mg + 2 mL | 1.00 mg/mL | 200 mcg | 0.20 mL | 20 units | €2.20 |
| Sermorelin 5mg + 2.5 mL | 2.00 mg/mL | 200 mcg | 0.10 mL | 10 units | €1.28 |
| Ipamorelin 10mg + 2.5 mL | 4.00 mg/mL | 300 mcg | 0.075 mL | 7.5 units | €1.65 |
| CJC-1295 10mg + 4 mL | 2.50 mg/mL | 100 mcg | 0.04 mL | 4 units | €0.45 |
| CJC-1295 DAC 5mg + 2.5 mL | 2.00 mg/mL | 2 mg | 1.00 mL | 100 units | €15.60 |
| CJC/Ipa blend 10mg + 2 mL | 5.00 mg/mL | 300 mcg | 0.06 mL | 6 units | €2.25 |
| Tesamorelin 5mg + 2 mL | 2.50 mg/mL | 1 mg | 0.40 mL | 40 units | €7.00 |
| Tesamorelin 10mg + 2 mL | 5.00 mg/mL | 1 mg | 0.20 mL | 20 units | €4.90 |
| Tesamorelin 20mg + 2 mL | 10.00 mg/mL | 1 mg | 0.10 mL | 10 units | €4.25 |
Two things jump out. The cheapest single draw in the cluster is a 100 mcg CJC-1295 dose at €0.45 — four units on the barrel. CJC-1295 DAC at 2 mg is €15.60 a shot, thirty-five times that, and fills the whole barrel. Same class, two completely different cost structures, because DAC is dosed weekly in milligrams while the GHRPs are dosed daily in micrograms. Price per mg means nothing without the dose attached, which is why the DAC versus no-DAC breakdown matters before you shop.
Note also that the 10mg GHRP rows land on 3.33 mg/mL, so a 250 mcg draw is 7.5 units — an awkward half. Adding 2mL instead of 3mL gives 5 mg/mL and puts that same 250 mcg on exactly 5 units; 4mL gives 2.5 mg/mL and puts it on 10. Change the water, not your reading of the plunger — the general logic sits in the reconstitution chart.
Hand the numbers to the calculator
None of this is worth re-deriving by hand each time a vial size or dose changes.
- The cost calculator takes vial price, vial strength and dose, and returns cost per mg, cost per dose, doses per vial and cost per week — including the waste effect described above.
- The reconstitution calculator converts mg or mcg into mL and U-100 units for any BAC volume you choose, and the per-compound versions — GHRP-2, tesamorelin — come pre-loaded with the catalogue reference values.
- The full cross-compound price table, including everything outside the GH cluster, lives in the price index.
Frequently Asked Questions
Which GH secretagogue is cheapest per mg?
GHRP-2 and GHRP-6 at 10mg, both at €3.30 per mg (€33.00 for 10 mg). They are priced identically in our index at both listed sizes. The next cheapest rung is tesamorelin 20mg at €4.25 per mg, then CJC-1295 no-DAC 10mg at €4.50.
How much cheaper is a bigger GH peptide vial?
Across the five measurable size steps in this cluster the step up averages -32.7% per mg. Hexarelin 2mg to 5mg is the steepest at -47.3%; tesamorelin 10mg to 20mg is the shallowest at -13.3%. That is the headline discount, not necessarily the one you realise.
Why is my real cost per mg higher than the listed figure?
Because reconstituted peptide has a shelf life and micrograms per day is a slow way to empty a vial. At 100 mcg once daily a 5mg hexarelin vial would need 50 days, but the reconstituted window is about 28 — so you deliver 2.8 mg of the 5 mg you paid for, and €5.80/mg becomes €10.36/mg.
What does a 20mg tesamorelin vial cost per mg?
€4.25 per mg — €85.00 for 20 mg in our index snapshot. That makes it the third-cheapest rung in the whole cluster, behind only the two 10mg GHRP vials at €3.30. Against the 10mg vial at €4.90/mg it is a 13.3% saving, or €13.00 on twenty milligrams: the shallowest step in the cluster, and a useful reminder that ladders flatten near the top.
Is the CJC/ipamorelin blend cheaper than buying both peptides?
No. The 10mg blend is €74.99, or €7.50 per mg of total peptide. A 10mg CJC-1295 vial (€44.99) plus a 10mg ipamorelin vial (€54.99) is €99.98 for 20 mg — €5.00 per mg, and twice the material. The blend charges roughly 50% more per mg for the convenience of one draw.
How many doses does a GHRP-2 10mg vial hold?
At 100 mcg per dose, 100 doses; at 200 mcg, 50; at 300 mcg, 33. Reconstituted in 3mL that is 3, 6 and 9 units respectively on a U-100 syringe. Whether you get through them before the four-to-six week window closes is the part the doses-per-vial number does not tell you — run it through the cost calculator.
Where do these prices come from?
They are a build-time snapshot of listed EU research-supply prices, compiled into the price index. They are catalogue figures rather than literature values, and they move — see our methodology for how the snapshot is taken and what it covers.
References
- Teichman SL, Ferrick A, Castaigne JP, et al. “Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults.” Journal of Clinical Endocrinology and Metabolism, 2006;91(3):799-805.
- Gobburu JV, Agersø H, Jusko WJ, Ynddal L. “Pharmacokinetic-pharmacodynamic modeling of ipamorelin, a growth hormone releasing peptide, in human volunteers.” Pharmaceutical Research, 1999;16(9):1412-1416.
- Cabrales A, Gil J, Fernández E, et al. “Pharmacokinetic study of Growth Hormone-Releasing Peptide 6 (GHRP-6) in nine male healthy volunteers.” European Journal of Pharmaceutical Sciences, 2013;48(1-2):40-46.
- Falutz J, Allas S, Blot K, et al. “Metabolic effects of a growth hormone-releasing factor in patients with HIV.” New England Journal of Medicine, 2007;357(23):2359-2370.
- Bowers CY, Reynolds GA, Durham D, et al. “Growth hormone (GH)-releasing peptide stimulates GH release in normal men and acts synergistically with GH-releasing hormone.” Journal of Clinical Endocrinology and Metabolism, 1990;70(4):975-982.
- PeptiMap. “EU Peptide Price Index” — build-time snapshot of listed European research-supply pricing across 50+ compounds. Every euro figure in this article is drawn from that dataset; reconstitution volumes and concentrations come from the PeptiMap catalogue pages linked throughout.
This article is a research and educational reference only; GH secretagogues sold as research peptides are not approved medicines, this is not medical advice, and it is not for human consumption.