Sermorelin + Ipamorelin 10mg
A 1:1 dual-pathway secretagogue blend formulated to examine synergistic somatotroph stimulation and pulsatile growth hormone secretion.
Mechanism
The blend concurrently activates pituitary GHRH receptors via sermorelin and GHS-R1a receptors via ipamorelin, driving amplified pulsatile growth hormone release through complementary secondary messenger pathways.
Dosing
Published research protocols commonly initiate titration at 300 mcg of total blend administered once daily on a 5-day on, 2-day off cycle.
Reconstitution
Reconstitution of the 10 mg composite vial with 3.0 mL of bacteriostatic water yields an overall blend concentration of 3,333 mcg/mL (approximately 1,667 mcg/mL per constituent).
Storage
Store the unmixed lyophilized powder at -20 °C, and maintain the reconstituted liquid between 2 °C and 8 °C protected from light without freezing.
Mix & measure Sermorelin + Ipamorelin 10mg
Pre-filled with this protocol's recommended BAC water and documented starting dose — edit any field to run your own numbers.
Mix & measure Sermorelin + Ipamorelin 10mg
Vial strength → BAC water → target dose
Total doses in vial: 33.3
U-100 syringe: 100 units = 1 mL
Reconstitution math only — not dosing advice. U-100 syringe: 100 units = 1 mL. Advanced calculator →
Dosing Chart
| Phase / Day(s) | Dose & Frequency | Volume (U-100 units / mL) |
|---|---|---|
| Weeks 1–4 | 300 mcg total (1× daily) | 9 units (0.09 mL) |
| Weeks 5–8 | 500 mcg total (1× daily) | 15 units (0.15 mL) |
| Weeks 9–12 | 600 mcg total (1× daily) | 18 units (0.18 mL) |
Reconstitution Steps
- 1
Draw exactly 3.0 mL of bacteriostatic water using a sterile syringe.
- 2
Introduce the diluent slowly against the inside glass wall of the vial to minimize agitation.
- 3
Swirl the vial gently until the lyophilized cake fully dissolves, avoiding vigorous shaking.
- 4
Affix a label indicating the reconstitution date, the 3,333 mcg/mL total concentration, and the 1:1 constituent ratio.
- 5
Refrigerate the dissolved blend at 2–8 °C, shielded from light exposure.
Supplies Needed

Peptide Vial
Provides 10 mg of total lyophilized material (5 mg Sermorelin + 5 mg Ipamorelin).

Insulin Syringes (U-100)
Required for precise liquid volumetric measurement and experimental sampling.

Bacteriostatic Water
Serves as the sterile, preserved diluent (3.0 mL recommended) for reconstitution.

Alcohol Swabs
Used to sanitize the vial stopper and preparation surfaces prior to puncture.
Why researchers study it
Pulsatile GH & IGF-1 axis stimulation
Selective GH release lacking cortisol induction
Adipose lipolysis and lean tissue preservation
Sleep architecture and recovery pathways
These describe what is being studied, not proven benefits, approved uses, or promised results.
Overview
The Sermorelin and Ipamorelin composite combines an active growth hormone-releasing hormone fragment with a selective ghrelin receptor agonist within a unified 10 mg lyophilized formulation. By targeting distinct receptors on the anterior pituitary, the combination is frequently investigated for its potential to trigger complementary intracellular cascades, thereby accentuating endogenous growth hormone pulses without disrupting baseline physiological rhythmicity. Sermorelin corresponds to the truncated 29-amino-acid bioactive terminal of endogenous GHRH, primarily responsible for setting pulse amplitude. In contrast, ipamorelin functions via the secretagogue receptor GHS-R1a to induce hormone discharge without significantly provoking secondary adrenocorticotropic or prolactin pathways. Integrating both entities at an equal mass ratio enables researchers to explore multivalent secretagogue dynamics from a single combined experimental preparation. Because this blend provides both agents in an unalterable 1:1 proportion, investigation is restricted to fixed-ratio paradigms. The protocol outlines standard laboratory preparation guidelines, measurement equivalents on U-100 syringes, and volumetric titration frameworks suited for in vitro and comparative physiological models.
References
- 1.Thorner et al., J Clin Endocrinol Metab, 1996 — Pediatric multicenter evaluation of GHRH(1-29) on growth velocity
- 2.FDA determination, Federal Register, 2013 — Discontinuation status and safety review of sermorelin acetate
- 3.Soule et al., J Clin Endocrinol Metab, 1994 — Comparative clearance kinetics of native GHRH(1-29) versus analogs
- 4.Achermann et al., Clin Endocrinol, 1999 — Continuous GHRH infusion impact on endogenous GH pulse amplitude
- 5.Raun et al., Eur J Endocrinol, 1998 — Endocrine selectivity and receptor characterization of ipamorelin
- 6.Gobburu et al., Pharm Res, 1999 — Intravenous pharmacokinetics and pharmacodynamics of ipamorelin in humans
- 7.Popovic et al., J Clin Endocrinol Metab, 1995 — Synergistic interaction between GHRH and GH secretagogues
- 8.Ghigo et al., Ann Med, 1998 — Comprehensive review of GH secretagogue action and GHRH synergy
- 9.Massoud et al., Clin Endocrinol, 1997 — Secretagogue efficacy under high-dose somatostatin infusion
- 10.WADA, Prohibited List, 2026 — S2 classification of growth hormone secretagogues and releasing factors
- 11.The Medical Letter, Med Lett Drugs Ther, 1999 — Clinical profile and documented adverse events of sermorelin
Supplies Needed
Suggested supplierResearch use only. Listing a supplier is not an endorsement of any protocol on this site, and nothing sold there is approved for human use.
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