📌At a Glance: Sermorelin Reconstitution Arithmetic
- Peptide Class: Growth hormone-releasing hormone analogue (synthetic GHRH 1-29 amide).
- Molecular Target: Pituitary GHRH receptors, stimulating pulsatile endogenous somatotropin release.
- Standard Math: Milligram powder to microgram target draws using U-100 (100 units = 1.0 mL) syringes.
- Key Difference: Unlike intact 44-amino-acid GHRH or hexenoyl-stabilized analogues like Tesamorelin, Sermorelin represents the shortest fully functional 29-amino-acid sequence.
Sermorelin acetate was approved by the U.S. FDA in 1997 under NDA 020443 (Geref) as a diagnostic agent for pituitary somatotroph function and treatment of pediatric growth hormone deficiency. Commercial marketing under the NDA was subsequently discontinued by the manufacturer for reasons unrelated to safety or efficacy. Today, sermorelin acetate is evaluated in clinical research and compounded under federal FD&C Act section 503A frameworks.
- A personalized therapeutic dose, administration schedule, or clinical growth hormone replacement protocol.
- The exact serum IGF-1 or somatotropin elevation resulting from any individual administration.
- How long a specific compounded batch maintains chemical stability beyond standard refrigeration guidelines (2°C–8°C).
- Whether sermorelin or other GHRH secretagogues are permitted under competitive sports anti-doping regulations (WADA prohibits all GHS compounds under Category S2).
This tool converts volumetric liquid measurements and syringe tick marks only. It does not provide medical guidance, dosing schedules, or clinical administration protocols. Review our Medical & Research Disclaimer.
What Is Sermorelin?
Because Sermorelin acts upstream through natural endocrine feedback loops, pituitary somatostatin release preserves normal physiological GH pulse control. In research settings, Sermorelin is evaluated alongside CJC-1295 & Ipamorelin and Tesamorelin. Sermorelin has an active half-life of 10 to 12 minutes. Calculating accurate dosing with our peptide calculator and bacteriostatic water ensures consistent microgram administration.
Sermorelin Reconstitution Conversion Chart
This table converts example microgram test amounts (200 mcg and 300 mcg) across 2 mg, 5 mg, and 9 mg vials into U-100 syringe units. Values are illustrative arithmetic conversions only, not clinical dosing recommendations.
| Vial Size | Bac Water Added | Concentration | Example Amount | Draw Units (U-100) |
|---|---|---|---|---|
| 2 mg | 2.0 mL | 1,000 mcg/mL | 200 mcg | 20.0 Units |
| 5 mg | 2.0 mL | 2,500 mcg/mL | 300 mcg | 12.0 Units |
| 5 mg | 2.5 mL | 2,000 mcg/mL | 300 mcg | 15.0 Units |
| 9 mg | 3.0 mL | 3,000 mcg/mL | 300 mcg | 10.0 Units |
Sermorelin Reconstitution & Concentration Reference Matrix
The table below provides deterministic volume and unit calibrations across standard research vial masses (2 mg, 3 mg, 5 mg, and 9 mg) reconstituted with 1.0 mL, 2.0 mL, or 3.0 mL of bacteriostatic water. For related growth axis peptides, consult our Tesamorelin calculator, CJC-1295 & Ipamorelin calculator, and AOD-9604 calculator.
| Vial Mass | Bac Water Added | Concentration (mg/mL) | Concentration (mcg/mL) | Draw per 100 mcg | Draw per 300 mcg |
|---|---|---|---|---|---|
| 2 mg | 1.0 mL | 2.0 mg/mL | 2,000 mcg/mL | 5 units (0.05 mL) | 15 units (0.15 mL) |
| 2 mg | 2.0 mL | 1.0 mg/mL | 1,000 mcg/mL | 10 units (0.10 mL) | 30 units (0.30 mL) |
| 3 mg | 1.5 mL | 2.0 mg/mL | 2,000 mcg/mL | 5 units (0.05 mL) | 15 units (0.15 mL) |
| 3 mg | 3.0 mL | 1.0 mg/mL | 1,000 mcg/mL | 10 units (0.10 mL) | 30 units (0.30 mL) |
| 5 mg | 2.0 mL | 2.5 mg/mL | 2,500 mcg/mL | 4 units (0.04 mL) | 12 units (0.12 mL) |
| 5 mg | 2.5 mL | 2.0 mg/mL | 2,000 mcg/mL | 5 units (0.05 mL) | 15 units (0.15 mL) |
| 5 mg | 5.0 mL | 1.0 mg/mL | 1,000 mcg/mL | 10 units (0.10 mL) | 30 units (0.30 mL) |
| 9 mg | 3.0 mL | 3.0 mg/mL | 3,000 mcg/mL | 3.3 units (0.033 mL) | 10 units (0.10 mL) |
Worked Reconstitution Arithmetic: 3 mg Vial with 3.0 mL Diluent
- Vial mass: 3 mg sermorelin acetate lyophilisate
- Reconstitution volume: 3.0 mL bacteriostatic water
- Illustrative target draw: 300 mcg (0.3 mg)
- Syringe standard: U-100 insulin syringe (100 units = 1.0 mL = 0.01 mL per unit)
- Calculate reconstituted vial concentration: 3 mg ÷ 3.0 mL = 1.0 mg/mL (1,000 mcg/mL).
- Determine syringe graduation unit resolution: 1,000 mcg/mL ÷ 100 units/mL = 10 mcg per unit mark.
- Calculate volume corresponding to 300 mcg: 300 mcg ÷ 1,000 mcg/mL = 0.30 mL.
- Translate liquid volume to syringe unit scale: 0.30 mL × 100 units/mL = 30 units on a U-100 barrel.
- Perform reverse verification: 30 units × 10 mcg/unit = 300 mcg (0.30 mL × 1.0 mg/mL = 0.3 mg), confirming mathematical parity.
Draw 30 units (0.30 mL) on a standard U-100 insulin syringe.
Note: Arithmetic back-check: 30 units × 10 mcg/unit = 300 mcg. At 1.0 mg/mL concentration, a 30-unit draw fits comfortably within a 0.3 mL (30-unit) or 0.5 mL (50-unit) syringe barrel.
How to Reconstitute Sermorelin
Reconstituting Sermorelin requires standard aseptic diluent techniques to preserve fragile N-terminal peptide bonds.
U-100 Syringe Graduation & Measurement Line (Sermorelin)
5 Standard Reconstitution Steps for Sermorelin
- Sanitize both rubber stoppers with 70% isopropyl alcohol wipes.
- Draw 2.0 mL of sterile bacteriostatic water into a syringe.
- Inject water slowly down the side glass wall of the Sermorelin vial.
- Swirl gently until completely clear. Do not shake.
- Refrigerate reconstituted solution at 2°C–8°C.
❄️ Storage & Shelf-Life Notice (Sermorelin)
Store reconstituted multi-dose solutions refrigerated at 2°C–8°C (36°F–46°F) protected from light and never freeze. Under FDA multi-dose sterile vial guidance, discard opened multi-dose vials within 28 days of initial puncture.
⚠️ Common Preparation Mistakes to Avoid
Vigorous shaking creating persistent foam, using unpreserved sterile water, and freezing reconstituted liquid solution.
Sermorelin Dosing FAQ
How much bac water do I add to 5mg Sermorelin?↓
How many units is 200 mcg Sermorelin on a 2mg vial?↓
What is the half-life of Sermorelin?↓
How does Sermorelin compare to Tesamorelin?↓
Can this calculator be used if Sermorelin is mixed with another peptide in the same vial?↓
Related Peptide Calculators & Stacks
Related Reconstitution & Dosing Guides
View All FAQs→Scientific & Regulatory References
View Full Sources Registry→The mathematical formulas on this page are deterministic volumetric conversions. Non-mathematical parameters, regulatory status notes, and chemical safety guidelines are referenced directly to the primary sources cataloged below:
- [1]FDA Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations (Sermorelin Acetate, NDA 020443)U.S. Food and Drug Administration (FDA CDER)•Type: fda label•Verified: 2026-10-20
Geref (sermorelin acetate) FDA approval in 1997 for diagnostic use and pediatric GHD; discontinued by applicant for commercial reasons, not safety or efficacy.
- [2]Sermorelin: A Review of its Use in Growth Hormone Secretion Diagnostics and TherapeuticsDrugs (PubMed PMID: 10465223)•Type: peer reviewed•Verified: 2026-10-20
Clinical pharmacology of the 29-amino-acid synthetic GHRH 1-29 fragment.
- [3]World Anti-Doping Code International Standard: Prohibited List (S2: Peptide Hormones)World Anti-Doping Agency (WADA)•Type: regulatory list•Verified: 2026-10-20
Prohibits growth hormone secretagogues (GHS), GH fragments, BPC-157, TB-500, and metabolic modulators.
- [4]Bacteriostatic Water for Injection, USP Multi-Dose Prescribing DetailsU.S. National Library of Medicine (DailyMed / Hospira / Pfizer)•Type: fda label•Verified: 2026-10-20
Sterile multi-dose diluent specification containing 0.9% (9 mg/mL) benzyl alcohol preservative.
- [5]FDA's Concerns with Unapproved GLP-1 Drugs Used for Weight LossU.S. Food and Drug Administration (FDA CDER)•Type: fda communication•Verified: 2026-11-08
FDA safety alert detailing risks of unapproved compounded GLP-1 drugs, dosing errors, lack of pre-market review, improper cold-chain shipping temperatures, and recommendation to discard multi-dose sterile vials 28 days after first puncture.
- [6]USP General Chapter <797>: Pharmaceutical Compounding — Sterile PreparationsUnited States Pharmacopeial Convention (USP)•Type: standard•Verified: 2026-10-20
Standards for beyond-use dates (BUD), refrigeration controls (2°C–8°C), and multi-dose sterility.
- [7]Embecta Ultra-Fine™ U-100 Insulin Syringe Product Specificationsembecta (formerly BD Diabetes Care)•Type: manufacturer spec•Verified: 2026-11-08
Manufacturer specifications for sterile single-use U-100 insulin syringes (0.3 mL, 0.5 mL, and 1.0 mL capacities with 1-unit and 1/2-unit scales).