Research-grade compound. Laboratory use only. Not intended for human or animal use, ingestion, or injection. No medical claims are made or implied.
≥98% PuritySupplier batch spec · ≥98% (class spec)
Endocrine and Hormone Research PeptidesSKU: CP-TES
Tesamorelin
≥98% PuritySupplier batch spec; selected lots Janoshik-tested
Research Reference
peptidesdb.org
/p/tesamorelin
In Stock
Delivers to EU in 11-14 business days
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Research-grade Tesamorelin. ≥98% supplier batch specification; selected lots independently tested (99.3% avg across published reports). Lyophilized powder in sealed glass vial. For laboratory research use only. Not for human consumption.
Volume PricingApplied automatically at checkout
| Quantity | Price Each | Total | Savings |
|---|---|---|---|
| 1 unit | €43.49 | €43.49 | -- |
| 3+ | €41.32 | €123.95 | 5% off |
| 5+Most Popular | €39.14 | €195.71 | 10% off |
| 10+ | €36.97 | €369.67 | 15% off |
Size5mg
€43.49
1
Total: €43.49
Free shipping on orders over €200
Important Notice
This product is intended for laboratory and research use only. Not for human or veterinary use. By purchasing, you confirm this product will be used exclusively for in-vitro research purposes.
Reconstitution Required
This peptide ships lyophilized (dry powder) and requires bacteriostatic water to reconstitute before use. BAC water is sold separately.
When This Product May Not Suit Your Research
- ⚠If your research requires GMP-grade material for clinical applications — research-grade peptides are not intended for clinical use.
- ⚠If your lab lacks proper cold storage (-20°C freezer) — this peptide's stability may be compromised at higher temperatures.
- ⚠If your study protocol requires FDA-approved reference standards — contact USP or a certified reference material provider.
Purity HPLC
99.3% average HPLC purity, verified by independent third-party testing
Third-Party Tested
Janoshik report published when available
Fast Shipping
24h dispatch, EU-wide shipping from €4.99
Third-Party Tested
Supplier batch specification on every product; independent Janoshik report on selected lots
Last reviewed: 2026-06-09
About Tesamorelin
Tesamorelin is the full-length human GHRH(1-44) sequence with a trans-3-hexenoic acid modification at the N-terminus that enhances receptor binding affinity and metabolic stability. It is one of the most extensively characterized GHRH analogs, with a substantial body of pharmacology and characterization data that other GHRH analogs simply don't have. CAS: 218949-48-5. MW 5,135.9 Da.
Why the Full 44-Residue Sequence Matters
The mechanism follows standard GHRH biology: in research models, pituitary GHRH-R activation is studied for its role in pulsatile GH secretion, downstream IGF-1 signalling, and GH-mediated lipolysis that preferentially targets visceral adipose depots in model systems. The full 44-amino-acid sequence is relevant here because the C-terminal residues of GHRH contribute to receptor binding — truncated analogs like sermorelin (1-29) have reduced potency relative to the complete sequence.
That extensive characterization generated endpoints beyond just GH and IGF-1: visceral adipose tissue measurements by MRI, liver fat quantification, and lipid/metabolic biomarkers. That specific dataset — visceral fat, liver endpoints — is more developed for tesamorelin than for sermorelin, CJC-1295, or other GHRH analogs. For NAFLD models, visceral-adiposity research, or studies requiring a well-characterized GHRH reference compound, tesamorelin is the appropriate choice.
Specifications
| Molecular Weight | 5,135.9 Da |
|---|---|
| CAS | 218949-48-5 |
| Purity | ≥98% (supplier batch spec; 99.3% avg across independently tested lots) |
| Form | Lyophilized powder |
| Sizes | 2mg, 5mg, 10mg, 20mg |
Storage: Lyophilized: −20°C, away from light. Once reconstituted: 2–8°C, use within 4 weeks.
Quality: Shipped to a ≥98% supplier batch specification; selected lots are independently tested by Janoshik Analytical (HPLC + mass spectrometry; 99.3% average purity across published reports), searchable by batch code at certapeptides.com/verify. EU-based QC under CERTALAB S.R.L.
Frequently Asked Questions
What makes tesamorelin different from sermorelin?
Sermorelin is GHRH(1-29) — the first 29 of the 44 residues. Tesamorelin is the full 44-amino-acid sequence with an N-terminal modification that increases stability. The full sequence binds GHRH-R more completely. Tesamorelin also has a more developed characterization dataset, with visceral fat, liver fat endpoints, and lipid/metabolic biomarkers documented in the research literature. Sermorelin has none of that dataset.
Why is tesamorelin associated with visceral fat research specifically?
In research models, tesamorelin's GH-driven lipolysis is studied for preferentially targeting visceral adipose tissue rather than subcutaneous depots. Research characterizing the compound used visceral fat reductions measured by MRI as a primary endpoint, which is why it features in visceral-adiposity and metabolic-pathway research. The available characterization data also provides a useful reference profile for that line of investigation.
For research purposes only. Not for human consumption.
Specification Summary
Purity99.3% avg
FormLyophilized Powder
Storage-20\u00B0C
Researcher Confidence
Why researchers choose CertaPeptides
Who actually tests this?
Selected lots are independently verified by Janoshik Analytical (Czech Republic) and published on the Janoshik public portal. Other lots ship with the supplier's batch specification. See /coa for the published wall.
View COAs →What if I get the wrong batch?
Every bottle label carries a lot number that maps to a specific Certificate of Analysis. If a batch fails spec, we don't ship it — full stop.
View COAs →Where does it ship from?
Romania (EU). We are CERTALAB SRL, CUI 54169956, VAT-registered. Sameday for Romania, TCE Worldwide for all cross-border EU and non-EU markets (UK, Switzerland, Norway, Iceland, Israel, Serbia). Delivery 1–14 business days depending on destination — exact window shown at checkout.
Shipping details →What if there's a problem?
You have a 14-day withdrawal right under OUG 34/2014 (Romanian/EU consumer law), with ANPC/ODR escalation available. Contact us at support@certapeptides.com.
Returns policy →Product Information
This product is intended for scientific research and development purposes only. It is a chemical substance that shall not be used as a drug, medicine, active substance, or ingredient in any product intended for human or animal consumption. Researchers must handle this compound in accordance with their institutional biosafety guidelines. Use only in properly equipped laboratory settings with appropriate personal protective equipment.
Frequently Asked
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Tesamorelin€43.49