Tesamorelin Pre-Filled Pen

TESAMORELIN PEN

Chemical Name

Tesamorelin — a stabilized synthetic analogue of human growth hormone-releasing hormone, also known as (3E)-hexenoyl human GHRH (1–44). Pharmaceutical formulations commonly use tesamorelin acetate.

CAS Number

218949-48-5 (tesamorelin); 901758-09-6 (tesamorelin acetate)

Researched Benefits of the Peptide

Tesamorelin has been investigated for its ability to stimulate endogenous growth hormone release and influence growth hormone–IGF-1 signalling. Evidence and regulatory status apply to specific pharmaceutical formulations and clinical indications, not automatically to research products supplied in pen form.

• Established human evidence: Randomized clinical trials found reductions in excess visceral abdominal fat among adults with HIV-associated lipodystrophy.

• Regulatory context: Prescription tesamorelin is approved in the United States for reducing excess abdominal fat in adults with HIV and lipodystrophy; it is not approved as a general weight-loss treatment.

• Metabolic research: Studies have examined potential effects on body composition, lipid markers and liver fat, with outcomes varying by population and study design.

• Mechanism of interest: Tesamorelin activates growth hormone-releasing hormone receptors, promoting the body’s own pulsatile release of growth hormone rather than acting as growth hormone itself.

For research use only.

Kit Includes:

1x Peptide Pen

20x Pen Tips

10x alcohol swabs

(extra pen tips can be bought separately) 

Shipping Notice:

Please note that our peptide pens require strict overnight shipping, as they remain stable for a maximum of 2 days while in transit. To protect product integrity, these items are dispatched via a specialized cold-chain courier system, ensuring they are kept cold for most of their journey. Because of these tight temperature constraints, if you live in a regional or remote area where reliable overnight delivery is unavailable, we strongly advise ordering our standard lyophilized (freeze-dried) vials instead, as they are significantly more stable during extended transit times.

Product Longevity and Expiry

At BioLabs, we pride ourselves on delivering the purest, highest-potency products available on the market today. While many companies sell mass-produced peptide pens that have been sitting on warehouse shelves for weeks—critically reducing their effectiveness before they even reach your door—we take a completely different approach. Every single BioLabs peptide pen is made to order, formulated either the exact day of or the day before shipping to ensure you receive maximum potency and freshness.

Because our products are freshly compounded without unnecessary stabilizing fillers, we provide a strict 6-week efficacy guarantee from the date of manufacture. While your pen will likely remain stable and last longer if stored correctly under refrigeration, we strongly advise against using the product beyond this 6-week timeframe to guarantee optimal results and safety.