Tesamorelin
This product is for laboratory research use only. Not for human or veterinary use. Not a drug, supplement, or medical device.
Tesamorelin is supplied by Bench Grade Peptides as a lyophilized powder in a sealed, lot-numbered vial, for laboratory research use only — not for human or veterinary use.
Its published Certificate of Analysis (lot 00011/0011, analyzed September 3, 2026) is from AV Analytics, a third-party laboratory, and reports 99.79% purity by HPLC; every published lot is listed on the product's COA page. Vials ship at ambient temperature in protective packaging from Florida (Bench Grade Peptides LLC is registered in Dover, Delaware), with storage notes on the lot's certificate.
Under the Bench Grade Guarantee, if an ISO 17025-accredited US laboratory of the buyer's choosing reports a result that disagrees with the published Certificate of Analysis, Bench Grade refunds the order and shipping to the original payment method and pays the lab fee plus $100 separately, by a payment method arranged with the buyer.
Certificate of analysis
Independent laboratory report.
- Report sample
- 10 mg
- Purity (HPLC)
- 99.79%
- Batch
- 00011/0011
- Laboratory
- AV Analytics
- Analyzed
- Sep 3, 2026
This certificate documents the sample and batch shown above. Match the report to your vial label; contact us if you need a different size or lot. All lots for this product.
Overview
Stabilized GHRH analog studied in lipodystrophy and visceral-adiposity research models.
Read the full Tesamorelin compound profile — mechanism, published research, and references →
- Sequence
- N-terminally hexenoyl-modified GHRH (1-44)
- Purity spec
- ≥ 99.0%
- Form
- Lyophilized powder
CAS 218949-48-5 · 5135.85 g/mol · Purity specification: ≥99% by HPLC · $147.00 per selected option
Molecular data
- CAS number
- 218949-48-5
- Mol. formula
- C221H366N72O67S
- Mol. weight
- 5135.85 g/mol
- Sequence
- N-terminally hexenoyl-modified GHRH (1-44)
- Purity
- ≥ 99.0%
- Lot number
- Assigned at shipment
Research context
Falutz et al., NEJM (2007).
Published research
Primary literature on this compound — trial design, endpoints and limitations. Summaries, not recommendations.
- Effects of tesamorelin, a growth hormone-releasing factor, in HIV-infected patients with abdominal fat accumulation: a randomized placebo-controlled trial with a safety extensionJ Acquir Immune Defic Syndr · 2010 · PMID 20101189 · DOI 10.1097/QAI.0b013e3181cbdaff
- Metabolic Effects of a Growth Hormone-Releasing Factor in Patients with HIVN Engl J Med · 2007 · PMID 18057338 · DOI 10.1056/NEJMoa072375
From the journal
Storage & handling
Lyophilized Tesamorelin is shipped at ambient temperature in protective packaging. For long-term laboratory storage, keep vials sealed at –20°C, and where your lot's Certificate of Analysis is published, follow its storage notes.
Handling & reference
- Tesamorelin vs CJC-1295: two GHRH analoguesBoth are GHRH analogues, which makes them genuinely comparable — unlike most pairs. Where they differ: chain length, the N-terminal modification, and regulatory status.
- CJC-1295 vs Ipamorelin: two different receptorsThe most-compared pair in endocrine research supply act on different receptor families entirely. What that means, plus the 4.7× mass gap and the DAC question.
- Cold chain and ambient shipping — what actually survives transitLyophilized peptides ship ambient for good reason. Here is the science behind that, and what would genuinely warrant a cold pack.
- Freeze-thaw cycles and peptide integrityFreezing a peptide solution is not free. Each cycle concentrates solutes, shifts pH, and creates ice interfaces — which is why aliquoting beats re-freezing.
About Tesamorelin
- What is Tesamorelin?
- Stabilized GHRH analog studied in lipodystrophy and visceral-adiposity research models.
- What is the CAS number for Tesamorelin?
- Tesamorelin is registered under CAS Registry Number 218949-48-5.
- What is the molecular formula of Tesamorelin?
- The molecular formula of Tesamorelin is C221H366N72O67S, with a molecular weight of 5135.85 g/mol.
- Which laboratory issued the published certificate for Tesamorelin?
- The published certificate from AV Analytics records the analysis for the product and batch named in that document. Refer to the report for the tests performed and results; it does not establish testing for every vial size or shipping lot.
Before you order
- Independent report available. Lot 00011/0011 · 99.79% purity by HPLC · AV AnalyticsView the COA →
- UPS Ground ships free on 3 or more vials or on orders of $100 or more, UPS 2-Day at $250 or more and UPS Next Day Air at $600 or more (products after discounts; water does not count). Below those, UPS Ground is $20, UPS 2-Day $15 and UPS Next Day Air $60. Order by 2 PM ET on a business day and it ships the same day.Shipping →
- If a third-party lab disagrees with our COA, full refund plus $100.Guarantee →
- Pay by card.Payments →
- Made in the USA. Synthesized in an ISO-7 cleanroom. Match any laboratory report to the product and lot on your vial.Facility →
- Synthesized at a US facility in an ISO-7 certified cleanroom; filled and finished by a cGMP-certified US manufacturing partner.
- Secure facility with 24-hour CCTV cold-chain storage and time-locked chain-of-custody protocols.
- The published certificate from AV Analytics records the analysis for the product and batch named in that document. Refer to the report for the tests performed and results; it does not establish testing for every vial size or shipping lot.
- Open the published Certificate of Analysis below and match its product, vial size and batch to your vial. Contact us if you need help confirming the applicable report.
- US-domestic shipping only · Free UPS Ground on 3+ vials or $100+ · 2-Day $15, free at $250+.
More in Endocrine Research
Bundled in these stacks
- Vitality StackTesamorelin + NAD+ — GH-axis and mitochondrial cofactor.
- Sculpt StackGLP-3 R + MOTS-c + Tesamorelin — three vials, metabolic and GH-axis.
- Mega Multi-Pathway StackGLP-3 R + Tesamorelin + BPC-157 + TB-500 — four-vial cross-axis study set.
- Metabolic + Copper-Tripeptide StackGLP-3 R + Tesamorelin + GHK-Cu — incretin + GHRH + copper-binding tripeptide.
Reselling, or buying at wholesale volume? See wholesale and white-label peptide supply.