Peptide Guide + Calculator
Sermorelin Reconstitution Calculator & Guide
GHRH(1-29) Analog
Sermorelin is a synthetic 29-amino-acid analog of growth hormone-releasing hormone. Historical Geref products received FDA approval for pediatric growth-hormone deficiency but are now listed as discontinued products. This guide explains that regulatory history, human pharmacology, mechanism, current evidence limits, and educational concentration math.
Evidence Snapshot
Sermorelin research at a glance
Standardized regulatory and evidence context so research compounds, investigational drugs, and approved medications are not treated as if they have the same level of human evidence.
Development / evidence stage
Approved clinical use
Human evidence level
Human pharmacology / early clinicalPrimary mechanism
GHRH(1-29) analog that stimulates the pituitary GHRH receptor and endogenous GH release.
WADA context
Explicitly prohibited — S2Human intervention evidence
Historical Geref products received FDA approval, but those products are now listed in the Orange Book discontinued section; the evidence does not establish modern anti-aging or bodybuilding uses.
Human biology evidence
Human pharmacology and pediatric research established that GRF(1-29) can stimulate endogenous GH release.
Variant matters
The FDA-approved status reflects historical Geref approvals; current U.S. products should not be assumed equivalent to those discontinued formulations.
Key takeaway
Sermorelin has real human pharmacology and historical FDA approval, but there is no currently marketed Geref product and no validated modern anti-aging indication.
Evidence labels describe the research base and regulatory context; they are not treatment, dosing, or use recommendations. Review dates describe the last BACToBasics source check for this evidence summary. Anti-doping rules can change and should be verified with the applicable authority.
Sermorelin Reconstitution Calculator
Enter the vial amount, liquid volume, and amount you want to calculate. BACToBasics will automatically calculate concentration, liquid volume, and U-100 syringe-unit equivalents.
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Calculator values are educational math inputs only. They are not recommended preparation amounts, doses, or use protocols.
Sermorelin Reconstitution Math
Reconstitution math starts with the amount contained in the vial and the liquid volume used in the calculation. Dividing the vial amount by the liquid volume gives the resulting concentration.
Example vial amount
10 mg
| Liquid Volume | Calculation | Concentration |
|---|---|---|
| 1 mL | 10 mg ÷ 1 mL | 10 mg/mL |
| 2 mL | 10 mg ÷ 2 mL | 5 mg/mL |
| 3 mL | 10 mg ÷ 3 mL | 3.3333 mg/mL |
This table demonstrates concentration math only. The liquid volumes shown are examples for comparison and are not preparation recommendations.
More Reconstitution Tools
Need to compare different liquid volumes or convert between mg, mcg, mL, and U-100 units? Use the dedicated BACToBasics calculator tools.
What is Sermorelin?
Sermorelin is a synthetic form of the first 29 amino acids of human growth hormone-releasing hormone, also called GHRH or GRF. It stimulates the pituitary GHRH receptor and can trigger endogenous growth hormone release rather than supplying growth hormone directly.
Sermorelin has a historical FDA approval
The FDA Orange Book lists Geref sermorelin acetate products that were approved in 1990 and 1997. Those products are now in the discontinued section, and FDA records indicate they were not withdrawn for safety or effectiveness reasons. That history is different from saying that a currently marketed FDA-approved sermorelin product is available today.
What does human research show?
Human studies dating back to the 1980s demonstrated that GRF(1-29) can stimulate growth hormone release. Pediatric research also evaluated repeated subcutaneous GRF(1-29) administration for growth disorders. These data establish human biological activity, but they do not validate modern anti-aging, bodybuilding, recovery, or wellness claims.
How Sermorelin differs from CJC-1295
Sermorelin is essentially a short GHRH(1-29) peptide. CJC-1295 was engineered to extend persistence, especially in its DAC-containing form. Human evidence for the original long-acting CJC-1295 should not be transferred automatically to sermorelin, and neither should online claims about compounds marketed as CJC-1295 No DAC be treated as interchangeable with historical Geref evidence.
Sermorelin vs Tesamorelin
Both compounds act through the GHRH receptor, but their regulatory histories differ. Tesamorelin has currently marketed FDA-approved EGRIFTA products for a specific HIV-associated lipodystrophy indication. Sermorelin's historical Geref approvals are discontinued.
Competitive-sport context
Growth hormone-releasing factors are prohibited under WADA Section S2. Sermorelin acts directly in the GHRH pathway, so athletes subject to anti-doping rules should not assume that a peptide with historical medical use is permitted.
Sermorelin reconstitution math
BACToBasics can calculate concentration from user-entered vial mass and liquid volume. The calculator does not recreate historical Geref product instructions or provide a recommended preparation, dose, or schedule.
Explore more about Sermorelin
8 linksComparisons, research records, development tracking, blends, and related guides are available here when you want to go deeper.
Explore more about Sermorelin
8 linksComparisons, research records, development tracking, blends, and related guides are available here when you want to go deeper.
Blend guides containing Sermorelin
These pages are derived from blend component metadata, so a new blend automatically becomes discoverable from each linked component guide.
Related peptide guides
Related guides are ranked from shared comparison pages, shared blend pages, and peptide category rather than a hand-maintained link list.
Ipamorelin guide & calculator
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Growth Hormone & Performance · Pralmorelin / GH-Releasing Peptide-2
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Peptide guideGHRP-6 guide & calculator
Growth Hormone & Performance · Growth Hormone-Releasing Peptide-6
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Relevant glossary concepts
Definitions are matched against the guide's structured title, subtitle, description, and educational sections.
FDA-Approved
A status indicating that the FDA has approved a specific drug product for one or more labeled uses after reviewing the required evidence and manufacturing information.
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GlossaryConcentration
The amount of a substance contained in a given volume of liquid, such as mg/mL or mcg/mL.
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GlossaryPeptide
A chain of amino acids linked by peptide bonds.
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Sermorelin FAQ
Tap a question to expand only the answer you want to read.
Is Sermorelin FDA-approved?
Sermorelin acetate previously had FDA-approved Geref products, but those products are now listed in the Orange Book's discontinued section. There is not a currently marketed Geref product represented by this page.
Does Sermorelin stimulate growth hormone?
Yes. Human pharmacology studies show that GRF(1-29), or sermorelin, can stimulate endogenous growth hormone release through the pituitary GHRH receptor.
Is Sermorelin the same as CJC-1295?
No. They are related GHRH-pathway peptides but have different structures, persistence, research histories, and product identities.
Is Sermorelin the same as Tesamorelin?
No. Both are GHRH-receptor agonists, but tesamorelin is a different analog with currently marketed FDA-approved products for a specific HIV-associated indication.
Does historical approval prove anti-aging benefits?
No. Historical approval and older human studies do not establish modern anti-aging, bodybuilding, recovery, or general-wellness claims.
Sources & References
3 sourcesOpen the references when you want to inspect the research and regulatory sources behind this guide.
Sources & References
3 sourcesOpen the references when you want to inspect the research and regulatory sources behind this guide.
Current Orange Book edition listing historical Geref approvals in the discontinued product section.
FDA record showing 1997 marketing approval for sermorelin acetate under the Geref trade name.
Human research demonstrating growth-hormone release after GRF(1-29) administration.
BACToBasics provides educational information and math tools only. This content is not medical advice, dosing advice, injection instruction, or a recommendation to use any peptide or medication.