Name: Tesamorelin 10mg
Brand: Lab77 Peptides
SKU: LAB-8949
Price: 70.00 USD
Availability: InStock

What is Tesamorelin?

Tesamorelin is a synthetic analogue of human growth hormone-releasing hormone with a trans-3-hexenoyl group added to its N-terminus, a modification that increases resistance to enzymatic breakdown while preserving activity at the GHRH receptor. It is the active ingredient in an approved medicine, used clinically for a specific indication.

This listing is Tesamorelin 10mg from Lab77 Peptides (United States), sold on Stairway to Gray with escrow: your payment is held until the order arrives and only then released to the brand.

How it is understood to work

It binds pituitary GHRH receptors to stimulate pulsatile growth-hormone secretion, which drives a downstream rise in IGF-1. Because it works through the body’s own GHRH axis rather than bypassing it, normal feedback regulation of GH release is preserved, distinguishing this mechanism from direct administration of growth hormone itself.

Research status

Tesamorelin has been studied extensively in human clinical trials for its effects on visceral adipose tissue, hepatic fat, lipid profiles and body composition, giving it a stronger clinical evidence base than most peptides in this catalogue. It is also used in broader preclinical research into GH-axis function and age-related metabolic change.

This listing: Lab77 Peptides Tesamorelin

Brand: Lab77 Peptides
Also sold by: Jinlu Peptides 10mg $210.00 · HPEBIO 10mg $169.50 · Maxed Out Compounds 10mg $380.00 · European Peptide Sciences 10mg $549.00 · Kensington Biosciences 10mg $450.00 · SSRBIO 10mg $149.22

Lab testing

Lab77 Peptides published a Janoshik #231376 report for this compound. Test: Purity & Content (HPLC). Result: 98.24% purity · 10.36 mg. Tested Sep 29, 2026. Verification key 2UVDAUP7Q6HR can be checked at janoshik.com.

View the report · How to read it (Testing 101) · Every report for this compound

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

Specifications

Compound: Tesamorelin
Also known as: TH9507
Class: Growth hormone-releasing hormone (GHRH) analogue
Form: Lyophilized (freeze-dried) powder
Molecular formula: C₂₂₁H₃₆₆N₇₂O₆₇S
Molecular weight: 5136 g/mol
Per vial: 10mg
Brand: Lab77 Peptides · United States

Handling & storage

Supplied as a lyophilized powder; keep unopened vials frozen and protected from light, and once reconstituted with bacteriostatic water, store refrigerated and use within the timeframe set by your protocol.

Concentration check: adding 2 ml of bacteriostatic water to one 10mg vial gives 5 mg/ml. The Research Lab calculator in your dashboard works this out for any volume.

Questions

Is tesamorelin an approved drug?

Yes, tesamorelin is the active ingredient in an FDA-approved medicine for a specific clinical indication; here it is supplied unformulated as a research material rather than in that approved dosage form.

How does tesamorelin differ from directly administered growth hormone?

Tesamorelin stimulates the pituitary to release the body’s own growth hormone through the natural GHRH pathway, preserving feedback regulation, whereas direct growth-hormone administration bypasses that pathway and its regulatory feedback entirely.

For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.