Sermorelin Reconstitution Calculator: BAC Water Volumes & Concentration Tables for Lab Research
DISCLAIMER: Sermorelin is a research chemical intended exclusively for qualified laboratory use in preclinical and in vitro research settings. It is not approved by the FDA as a research peptide for self-administration. All concentration calculations described on this page are provided solely for laboratory research purposes. Nothing herein constitutes medical advice, dosing guidance, or instructions for self-administration. Always follow your institution's standard operating procedures and biosafety requirements. Palmetto Peptides supplies research-grade peptides for scientific investigation in compliance with all applicable law.
Sermorelin Reconstitution Calculator: BAC Water Volumes & Concentration Tables for Lab Research
Last Updated: May 2026 | Reading Time: ~8 minutes | Author: Palmetto Peptides Research Team
Sermorelin — the first 29 amino acids of endogenous human growth hormone-releasing hormone (GHRH 1-29) — holds a unique position in preclinical GH axis research as the most physiologically representative GHRH analog available. Researchers studying the native hypothalamic-pituitary GH secretion axis often prefer Sermorelin over modified analogs like CJC-1295 precisely because its shorter half-life more closely mirrors endogenous GHRH signaling patterns.
Accurate reconstitution is equally important for Sermorelin as for any research peptide. This page provides concentration lookup tables for Palmetto Peptides' 5mg and 10mg Sermorelin vials, covering every common working concentration with pre-calculated BAC water volumes.
For the full step-by-step reconstitution procedure, see our Research Peptide Reconstitution and Dosing Reference Guide. This page is focused exclusively on Sermorelin concentration math.
Sermorelin: Research Background
Sermorelin (GHRH 1-29 NH2) is the biologically active N-terminal fragment of growth hormone-releasing hormone, comprising the first 29 amino acids. It binds the pituitary GHRH receptor and stimulates growth hormone secretion through the same mechanism as endogenous GHRH, making it valuable in research that aims to model physiologically relevant GH release patterns.
Unlike CJC-1295 (which is modified for extended half-life) or CJC-1295 DAC (albumin-bound for prolonged duration), Sermorelin's shorter half-life in biological systems makes it the preferred tool in research designs requiring pulsatile GH stimulation that closely mirrors the natural hypothalamic-pituitary signaling rhythm.
Palmetto Peptides supplies Sermorelin as lyophilized powder in two standard vial sizes: 5mg and 10mg, with third-party HPLC purity verification (≥98%) and mass spectrometry identity confirmation.
View Sermorelin Research Peptide →
The Reconstitution Formula
Volume to add (mL) = Peptide mass (mg) ÷ Target concentration (mg/mL)
Always use actual COA fill weight — not the labeled amount — for precise concentration control.
Sermorelin Concentration Calculator — 5mg Vial
| Target Concentration | BAC Water to Add | Total Solution Volume |
|---|---|---|
| 0.5 mg/mL | 10.0 mL | 10.0 mL |
| 1.0 mg/mL | 5.0 mL | 5.0 mL |
| 2.0 mg/mL | 2.5 mL | 2.5 mL |
| 5.0 mg/mL | 1.0 mL | 1.0 mL |
Based on nominal fill weight of 5.0mg. Adjust using actual COA fill weight.
Sermorelin Concentration Calculator — 10mg Vial
| Target Concentration | BAC Water to Add | Total Solution Volume |
|---|---|---|
| 0.5 mg/mL | 20.0 mL | 20.0 mL |
| 1.0 mg/mL | 10.0 mL | 10.0 mL |
| 2.0 mg/mL | 5.0 mL | 5.0 mL |
| 5.0 mg/mL | 2.0 mL | 2.0 mL |
Based on nominal fill weight of 10.0mg. Adjust using actual COA fill weight.
Sermorelin vs. CJC-1295: Reconstitution Comparison
| Factor | Sermorelin | CJC-1295 No DAC | CJC-1295 DAC |
|---|---|---|---|
| Available vial sizes | 5mg, 10mg | 5mg, 10mg | 5mg |
| Reconstitution formula | Identical across all three | — | — |
| Preferred solvent | BAC water | BAC water | BAC water |
| Biological half-life | Shortest (native GHRH pattern) | Intermediate | Longest (albumin-bound) |
| Research application | Physiological GH axis modeling | Pulsatile GH studies | Sustained GHRH signaling |
All three GHRH analogs use the same reconstitution math. The research choice between them depends entirely on the desired GH secretion kinetic profile for your experimental design.
Adjusting for Actual COA Fill Weight
Example: COA fill weight = 9.85mg, target = 2.0 mg/mL Volume to add = 9.85 ÷ 2.0 = 4.93 mL BAC water
In comparative research designs where Sermorelin and CJC-1295 are studied in parallel experimental arms, fill-weight-adjusted calculations in each arm ensures dose-matched concentration parity.
Solvent Selection
Bacteriostatic water (0.9% benzyl alcohol) is the standard reconstitution solvent for Sermorelin research solutions stored between experimental uses. The preservative properties of benzyl alcohol extend solution stability during refrigerated storage.
Sterile water for injection is appropriate for immediate single-use protocols only, without preservative requirements.
Palmetto Peptides supplies Bacteriostatic Water (BAC Water) 10mL vials for research reconstitution.
Aliquot Volume Reference
| Vial Size | Concentration | Total Volume | 100μL Aliquots |
|---|---|---|---|
| 5mg | 1.0 mg/mL | 5.0 mL | 50 aliquots |
| 5mg | 2.0 mg/mL | 2.5 mL | 25 aliquots |
| 10mg | 1.0 mg/mL | 10.0 mL | 100 aliquots |
| 10mg | 2.0 mg/mL | 5.0 mL | 50 aliquots |
Storage Conditions
| Form | Recommended Storage | Notes |
|---|---|---|
| Lyophilized (unreconstituted) | -20°C, desiccated | Stable for 24+ months when properly stored |
| Reconstituted in BAC water | 2–8°C, protected from light | Follow lab SOPs for peptide solution stability |
| Aliquoted samples | -20°C | Limit freeze-thaw cycles |
Frequently Asked Questions
How much BAC water for a 5mg Sermorelin vial at 1 mg/mL? Add 5.0 mL. This yields 5.0 mL of 1 mg/mL Sermorelin research solution.
How much BAC water for a 10mg Sermorelin vial at 2 mg/mL? Add 5.0 mL. Formula: 10 ÷ 2 = 5.0 mL.
Does Sermorelin dissolve easily in BAC water? Yes. Lyophilized Sermorelin is soluble in aqueous solvents. Gentle inversion or rolling for 30–60 seconds after adding BAC water is typically sufficient.
Is Sermorelin's shorter half-life a disadvantage in research? Not necessarily — it depends on the research question. For studies modeling physiologically relevant pulsatile GH release, Sermorelin's short half-life is a feature, not a limitation. For studies requiring sustained GHRH stimulation without repeated administration, CJC-1295 DAC may be more appropriate. See our CJC-1295 vs. Sermorelin Research Comparison guide for a detailed comparison.
Can Sermorelin be used in combination with Ipamorelin? Yes. Sermorelin + Ipamorelin is an alternative combination to the more commonly studied CJC-1295 + Ipamorelin, targeting the same GHRH and GHSR receptors respectively. Researchers comparing the two combination approaches may run parallel experimental arms using Sermorelin as the GHRH component.
Source Your Sermorelin from Palmetto Peptides
Palmetto Peptides supplies Sermorelin with third-party HPLC purity verification (≥98%), mass spectrometry identity confirmation, and lot-specific COA documentation with actual fill weights.
Order Sermorelin Research Peptide →
Related research tools:
- CJC-1295 No DAC Research Peptide — modified GHRH analog for comparative half-life research
- Ipamorelin Research Peptide — selective GHRP frequently studied alongside GHRH analogs
- Hexarelin Research Peptide — alternative GHRP for comparative GH secretagogue research
- Bacteriostatic Water (BAC Water) — pharmaceutical-grade reconstitution solvent