Research Use Only · 21+View Tesamorelin →
GHRH Analog · Research Use Only · 21+
Research-grade Tesamorelin, with the paperwork to prove it.
A synthetic analog of growth-hormone-releasing factor (GRF 1-44) with an N-terminal modification for stability, third-party tested with a lot-specific Certificate of Analysis. For laboratory research only.
99%+ PurityIndependent LabMade in USATracked US Shipping
The proof
Every batch, on paper.
We don’t hide behind a “3rd-party tested” badge. Every order ships with the lot-specific Certificate of Analysis for the exact vial you receive — independently run and verifiable by batch ID.
99%+
Purity
Confirmed by MS
Identity
Independent · ISO 17025
Lab
HPLC + mass spec
Method
What it is
A GHRH analog, studied in the lab.
Tesamorelin is a synthetic analog of the 44-amino-acid growth-hormone-releasing factor (GRF/GHRH) carrying a trans-3-hexenoic acid modification that resists enzymatic degradation. It is studied in preclinical, in-vitro models for its binding to the GHRH receptor on pituitary somatotroph cells and the downstream cAMP/PKA signaling cascade. Supplied as a lyophilized powder for laboratory research — not for human or veterinary use, and not a drug or dietary supplement.
- Class
- GHRH (GRF 1-44) analog
- Receptor
- GHRH receptor
- Molecular weight
- ≈ 5135.9 g/mol
- Form
- Lyophilized powder
- Storage
- −20°C, protect from light
Why researchers order from Ascension
Bought on the paperwork, not the hype.
A COA for every batch
Lot-specific HPLC + mass-spec report, shipped with the order and verifiable by batch ID.
Independent third-party testing
Purity by RP-HPLC and identity by mass spectrometry — through an ISO 17025 lab, not in-house.
Responsive US support
Real people, US-based, who answer batch and documentation questions before you order.
Tracked US shipping
Fast domestic dispatch with tracking on qualifying orders.
Consistent stock
Reliably in stock, so a research protocol isn't waiting on a restock.
Made in the USA
Synthesized and handled to a documented, repeatable standard.
Questions
What researchers ask.
Is Tesamorelin third-party tested?
Yes. Every batch ships with a lot-specific Certificate of Analysis — purity by RP-HPLC and identity by mass spectrometry from an independent ISO 17025 laboratory, verifiable by batch ID.
What is Tesamorelin?
Tesamorelin is a stabilized analog of growth-hormone-releasing factor (GRF 1-44) studied in vitro for its binding to the GHRH receptor and downstream pituitary signaling. It is supplied strictly for laboratory research.
How is Tesamorelin stored?
As a lyophilized powder at −20°C for long-term storage; reconstituted solutions are kept at 2–8°C and used within a few weeks. Allow full dissolution and avoid vigorous agitation.
Is Tesamorelin for human or veterinary use?
No. It is for laboratory and research use only — not for human or veterinary use, and not a drug or dietary supplement. You must be 21 or older to purchase.
More research compounds
Building a protocol? Start here.
GHRH analogCJC-1295A long-acting GHRH(1-29) analog with a Drug Affinity Complex, studied for sustained receptor activation.View CJC-1295 →GH secretagogueIpamorelinA selective GHSR-1a agonist studied for pulsatile GH-axis signaling in vitro.View Ipamorelin →CompareCJC-1295 vs TesamorelinTwo GHRH analogs side by side — modification, half-life profile, and research focus.View CJC-1295 vs Tesamorelin →
Compliance
For laboratory and research use only. You must be 21 or older to purchase. Not for human or veterinary consumption. These products are not drugs or dietary supplements and are not intended to diagnose, treat, cure, or prevent any disease. Statements on this page have not been evaluated by the U.S. Food and Drug Administration. Ascension Labs is a chemical supplier, not a compounding pharmacy.