Tesamorelin
Same-day shipping — Ships next business day, cutoff 3 PM ET.
≥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.
Mix and match any items — discount applies automatically at checkout.
Reminder email when it's time to reorder. No card on file. Cancel anytime from your account — or email support@aresresearchlab.com.
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.
Earn 24 loyalty points on this purchase · 100 pts = $5 off
Create a Research Account to unlock full batch data, COAs, and priority releases.
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 COA and third-party testing
Every tesamorelin batch is independently analysed before release. HPLC measures purity against a ≥99% standard, mass spectrometry confirms molecular identity, and the published panel records heavy-metals, endotoxin and sterility screening where applicable. The tesamorelin COA is tied to the batch number printed on the vial, so the result can be verified at source rather than taken from a summary claim.
Testing documentation is supplied for laboratory research use only and does not support human, veterinary, diagnostic or therapeutic use.
What is tesamorelin?
Tesamorelin is a synthetic analog of growth-hormone-releasing hormone (GHRH) — a 44-amino-acid releasing peptide reproduced by solid-phase synthesis and structurally modified to resist rapid enzymatic degradation. As a tesamorelin GHRH analog it is studied for how it engages the GHRH receptor relative to native GHRH.
Published tesamorelin research has examined endogenous growth-hormone secretion signalling — including downstream IGF-1 marker measurement — and visceral-adipose-tissue endpoints recorded in controlled studies. These describe measurements taken in research settings only; they do not establish an effect, benefit or suitability for any person, and nothing here constitutes medical, dosing or therapeutic guidance.
Ares Research supplies tesamorelin as analytical research material with batch-linked documentation, the format laboratories generally require when qualifying a peptide as a comparison or reference material.
Tesamorelin product specifications
| Compound | Tesamorelin (synthetic GHRH analog) |
|---|---|
| Class | Growth-hormone-releasing hormone analog — 44 amino acids |
| Purity standard | ≥99% (HPLC, with identity confirmed by mass spectrometry) |
| Physical form | Lyophilised powder in a sealed glass vial |
| Available vial sizes | 2mg, 5mg, 10mg and 20mg |
| Storage | Refrigerated and protected from light; batch handling documentation included |
| Testing | Third-party COA covering identity, purity, heavy metals, endotoxins and sterility |
| Origin | Synthesised and shipped domestically (USA) |
| Intended use | Laboratory research use only — not for human or veterinary use |
Tesamorelin research questions
+What is tesamorelin?
Tesamorelin is a synthetic analog of growth-hormone-releasing hormone (GHRH), a 44-amino-acid releasing peptide stabilised against rapid enzymatic breakdown. As a GHRH analog it is studied for how it engages the GHRH receptor in laboratory models. Ares Research supplies it strictly as analytical research material for laboratory use.
+What has published tesamorelin research examined?
Published tesamorelin research is concentrated on endogenous growth-hormone secretion signalling and on visceral-adipose-tissue endpoints measured in controlled studies, alongside IGF-1 marker measurement. These describe endpoints recorded in research settings and do not establish any effect, benefit or suitability for any person.
+Is your tesamorelin third-party tested, and can I see the COA?
Yes. Each tesamorelin batch is analysed by an independent laboratory before release, and the report is linked to the batch number printed on the vial. You can retrieve it through the batch COA lookup, and aggregate purity data is published on our transparency page.
+What purity standard does your tesamorelin meet?
Tesamorelin is released against a ≥99% purity standard measured by HPLC, with molecular identity confirmed by mass spectrometry. The third-party panel also covers heavy metals, endotoxins and sterility screening where applicable.
+Is this tesamorelin suitable as a reference material?
It is supplied as lyophilised powder with batch-linked identity and purity documentation, which is the format laboratories generally require when qualifying a peptide as a comparison or reference standard. Suitability for a specific method remains the receiving laboratory's determination.
+How is tesamorelin shipped?
Tesamorelin is synthesised and shipped domestically within the USA in sealed glass vials with protective packaging. Orders are dispatched with tracking, and batch documentation accompanies the shipment.
+How should tesamorelin be stored?
Sealed lyophilised vials are stored refrigerated and protected from light. Handling and storage documentation is included with each batch so conditions can be recorded alongside laboratory records.
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
Researcher Reviews
Sign in with the account that placed your order to leave a verified review.
Ask the Lab
No public questions yet — be the first to ask.
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 Janoshik Analytical. Verified and batch-tracked by Ares Research. Additional reports available upon request.
No fillers. No shortcuts. Only verified compounds.
More from Growth Hormone
Tesamorelin vs…
Researchers often weigh Tesamorelin against these alternatives. Spec-by-spec breakdowns: