Buy Tesamorelin | Research Grade Peptide | ≥99% Purity | COA Included
Tesamorelin is the only GHRH analog ever approved by the FDA, backed by more human clinical trial data than any other peptide in its class, including trials demonstrating measurable visceral fat reduction, IGF-1 normalization, and cognitive performance improvement in older adults. Research-grade, 99% pure. Available as Lyophilized powder. Sold in 10mg units. Every batch is independently third-party tested: HPLC purity confirmed at ≥99%, with mass spectrometry identity verification. A batch-specific Certificate of Analysis (COA) ships with every order. US-based supplier, ships within 24 hours.
Tesamorelin
10mg · Lyophilized powder
Amino Acid Sequence
Trans-3-hexenoic acid-modified GHRH(1-44)-NH₂
💡 Buy 3 or more — save 10% automatically
≥99% Purity
Third-party HPLC & MS verified
FDA-Approved Analog
Only GHRH analog with clinical approval history
Visceral Fat Research
Most clinically studied peptide for central adiposity
DPP-IV Resistant
N-terminal modification for extended stability
Molecular Data
Formula
C₂₂₁H₃₆₆N₇₂O₆₇S
Molecular Weight
5135.9 g/mol
Frequently Bought Together
Tesamorelin is an FDA-approved synthetic analog of growth hormone releasing hormone (GHRH), modified at the N-terminus with a trans-3-hexenoic acid group to resist enzymatic degradation, studied for visceral fat reduction, IGF-1 normalization, and cognitive function in aging populations. The FDA approved Tesamorelin in 2010. That fact separates it from every other GHRH analog in research. Not because FDA approval implies anything about research use, but because it required a level of human clinical data that most peptides never accumulate. The trials that earned that approval generated years of published safety and efficacy data in human subjects. That is an unusual resource in this field. Tesamorelin is a stabilized analog of endogenous GHRH(1-44), modified at the N-terminus with a trans-3-hexenoic acid group that confers resistance to dipeptidyl peptidase-IV, the enzyme responsible for the rapid degradation of native GHRH in circulation. The result is a longer-acting, more bioavailable form of the same signal your hypothalamus already sends to your pituitary. Research has documented its effects across visceral adiposity reduction, IGF-1 normalization, cardiovascular lipid profiles, and most recently cognitive function in adults over 60. A randomized controlled trial found measurable improvements in executive function and verbal memory in older adults receiving Tesamorelin over 20 weeks. That is an area of research that has drawn considerable interest as the compound's profile continues to expand. For researchers who want the most clinically validated GHRH analog available, there is no equivalent.
Researcher Reviews
Share your research experience
Sign in to leave a review
Frequently Asked Questions
Related Products
Tesamorelin— Specifications & Quality Standards
Certificate of Analysis: What We Test
HPLC Purity Analysis
Every batch of Tesamorelin is run through High-Performance Liquid Chromatography. The chromatogram confirms purity percentage and identifies any impurity peaks. Our minimum standard is ≥98%; flagship compounds test at ≥99%.
Mass Spectrometry (MS)
Mass spec confirms the molecular weight of Tesamorelin matches the theoretical value exactly. This verifies the compound identity, confirming it is not a substitute or mislabeled product.
Endotoxin Screening
Endotoxin testing ensures the compound is free from bacterial contamination. Combined with HPLC purity and MS identity confirmation, this is the full three-point verification used by accredited research labs.
Want to understand how to read a COA? Read our COA guide.
Tesamorelin: Frequently Asked Questions
What is Tesamorelin?
Tesamorelin is a stabilized synthetic analog of endogenous GHRH(1-44) approved by the FDA in 2010. It is modified at the N-terminus to resist degradation by dipeptidyl peptidase-IV, resulting in longer activity and greater bioavailability than native GHRH.
What was Tesamorelin FDA approved for?
Tesamorelin received FDA approval in 2010 for the treatment of excess abdominal fat (lipodystrophy) in HIV-positive adults. This approval required extensive human clinical trials, generating a body of safety and efficacy data unusual in the peptide research field.
What cognitive research has been done on Tesamorelin?
A randomized controlled trial examined Tesamorelin's effects on cognitive function in adults over 60. Researchers observed measurable improvements in executive function and verbal memory over 20 weeks, an area that has drawn growing interest in the compound's expanding research profile.
How does Tesamorelin differ from other GHRH analogs?
Tesamorelin is unique in having FDA approval and a large body of published human clinical data. Its N-terminal modification provides resistance to DPP-IV degradation, and its research profile spans visceral fat, IGF-1, lipid metabolism, and cognitive function.
Is Tesamorelin for human use?
No. Tesamorelin from Blackwell BioLabs is sold strictly for laboratory and research purposes outside of the FDA-approved clinical indication. It is not approved for unsupervised or general human use.
More questions? Contact our team or visit our full FAQ page.
Research Resources




