Tesamorelin
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≥99% purity verified by independent HPLC and mass spectrometry (MS) through Janoshik Analytical. Intended for laboratory research use only; not for human consumption, diagnosis, or treatment. View transparency report Compliance PDFs
Documentation & standards
- How to Read a Peptide Certificate of Analysis (COA)
- Batch Traceability: Lot Numbers, Records and Public Lookup
- Research-Use-Only Compliance: What the Label Obligates
Synthetic GHRH analog used in endocrine signaling research.
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Research selection for growth hormone signaling pathway research.
Build the full stack →Batch transparency
- Batch / lot
- Released with your order
- Testing lab
- Janoshik Analytical
- Purity (HPLC)
- ≥99% target spec
- Identity (MS)
- Available on request
- Report issued
- Available on request
- Full PDF report
- By request
Every request returns a reference number and a live status page. See all published batch records →
For laboratory research use only — not for human or veterinary use.
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Intended strictly for research and laboratory use only. Not for human consumption.
About Tesamorelin
Third-party purity testing available upon request.
Research Classification
Storage Information
Tesamorelin Purity & COA Verification
For laboratory research use only. Not for human consumption, diagnosis, or treatment.
Tesamorelin — Compound Information & Scientific Literature
Reference data for laboratory personnel: molecular identity, storage and stability handling, our analytical testing panel, and peer-reviewed literature indexed on PubMed.
Molecular Profile
| Compound | Tesamorelin |
|---|---|
| Molecule type | Synthetic GHRH(1-44) analog |
| Class | GHRH Analog |
| Catalog category | Growth Hormone |
| Physical format | Lyophilized vial |
Handling Reference
-20 °C, protected from light and moisture
24 months from date of manufacture in the sealed vial
2-8 °C (refrigerated), do not freeze after reconstitution
Stability studied out to approximately 28 days under continuous refrigeration
Analytical Testing Panel
Verified by Janoshik Analytical — full panel, every batch. Second independent lab confirmation is being added batch by batch.
Quantifies the main peak against related-substance peaks, so the stated purity percentage is measured rather than assumed.
Every Tesamorelin lot passes all 8 stages before it is released. Expand a stage to see the method and why we run it.
- Method on the COARP-HPLC (UV 214 nm)Why Ares runs it
Quantifies the main peak against related-substance peaks, so the stated purity percentage is measured rather than assumed.
- Method on the COAQuantitative HPLC mass/concentration assayWhy Ares runs it
Confirms the vial actually contains the labeled amount — purity alone says nothing about how much material is in the vial.
- Method on the COAMass Spectrometry (ESI-MS)Why Ares runs it
Confirms the measured molecular mass matches the declared compound — the check that catches a mislabeled or substituted vial.
- Method on the COAICP-MSWhy Ares runs it
Screens for elemental contaminants carried over from synthesis, reagents, or packaging.
- Method on the COAMembrane filtration, USP <71> methodologyWhy Ares runs it
Checks the finished lyophilized vial for microbial growth after fill and closure.
- Method on the COALAL assay (kinetic chromogenic)Why Ares runs it
Measures bacterial endotoxin load, a contamination marker that purity testing alone will not reveal.
- Method on the COAIndependent batch review against release specificationWhy Ares runs it
Ties the analytical numbers back to the paperwork — the lot you receive is the lot on the certificate.
- Method on the COALC-MS/MS targeted screenWhy Ares runs it
A contamination check most research suppliers never run, and the reason we run it on every batch regardless of compound.
PASS reflects the batch release standard every lot must meet before it ships. Per-lot results are published on that lot's Certificate of Analysis.
Peer-Reviewed References
Tesamorelin
, 2012 · PMID 31644039
View sourceEfficacy and safety of tesamorelin in people with HIV on integrase inhibitors
Russo SC et al. · AIDS (London, England), 2024 · PMID 38905488
View sourceTesamorelin
Grunfeld C et al. · Nature reviews. Drug discovery, 2011 · PMID 21283099
View sourceTesamorelin: a growth hormone-releasing factor analogue for HIV-associated lipodystrophy
Spooner LM et al. · The Annals of pharmacotherapy, 2012 · PMID 22298602
View sourceTesamorelin: a review of its use in the management of HIV-associated lipodystrophy
Dhillon S · Drugs, 2011 · PMID 21668043
View source
References are listed for literature-identification purposes only. Ares Research is not affiliated with the authors, journals, or institutions cited.
This material is supplied for laboratory and research use only. It is not for human or veterinary use, and it is not a drug, food, or cosmetic. These statements have not been evaluated by the Food and Drug Administration. No information on this page is intended to diagnose, treat, cure, or prevent any condition.
Tesamorelin research questions
+What is the certified purity of Tesamorelin?
Tesamorelin is supplied at ≥99% purity, verified by third-party HPLC-MS with a batch-specific COA.
+How does Tesamorelin compare to CJC-1295 in research use?
Both are GHRH analogs; Tesamorelin is a stabilized GHRH(1-44) with a longer functional half-life than native GHRH, while CJC-1295 (No DAC) is a 1-29 fragment optimized for pulsatile signaling. See /compare/tesamorelin-vs-cjc-1295-no-dac.
+What storage conditions are recommended for Tesamorelin?
Store lyophilized vials at -20°C protected from light. Reconstituted solutions are held at 2–8°C and used within the timeframe defined by the study protocol.
+Is Tesamorelin approved for human use through this supplier?
No. All Tesamorelin supplied by Ares Research Lab is for laboratory research use only.
Read the Tesamorelin research
Research-only pharmacokinetic profile of Tesamorelin: serum half-life, Tmax, route comparisons, clearance and bioavailability — curated from published preclinical and clinical PK literature.
Read article →Tesamorelin vs sermorelin compared: GHRH receptor activation, half-life, dosing, and visceral-fat vs general GH-axis research applications.
Read article →Tesamorelin reconstitution and storage guide: vial sizes, diluent volumes, U-100 syringe math, and stability windows for laboratory research.
Read article →Tesamorelin safety profile: common and serious adverse events, contraindications, monitoring, and IGF-1 thresholds for laboratory research.
Read article →A synthetic analogue of endogenous growth hormone-releasing hormone (GHRH), studied for its role in GH/IGF-1 axis stimulation, visceral adiposity reduction, and metabolic research contexts.
Read article →Published benefits, side effects, and comparisons for tesamorelin — the GHRH(1-44) analog with the strongest clinical evidence base for visceral-fat reduction.
Read article →How Ares compares for Tesamorelin
Independent, documentation-first breakdowns of the vendors researchers most often ask about for this compound. COA verification, US shipping, and sourcing transparency, side by side.
- Ares vs Peptide SciencesPeptide Sciences Alternative — 2026Sourcing model & pricingRead comparison →
- Ares vs Umbrella LabsUmbrella Labs Alternative — 2026COA transparency & US shippingRead comparison →
- Ares vs Core PeptidesCore Peptides Alternative — 2026Batch traceability, side-by-sideRead comparison →
Frequently bought together
Curated complements for this compound — researchers most often pair it with these.
Research Use Disclaimer
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All testing documentation and COA data are provided for laboratory research use only and are not intended to support human consumption, diagnostic, or therapeutic use.
Independent Certificate of Analysis
Independently tested by In-House Verification. Verified and batch-tracked by Ares Research. Additional reports available upon request.
No fillers. No shortcuts. Only verified compounds.
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