Support body composition, recovery, and healthy aging with a peptide designed to stimulate your body’s natural growth hormone release. Tesamorelin helps promote fat metabolism, energy, and overall vitality while supporting muscle preservation and recovery. Experience improved body composition, enhanced recovery, and renewed energy to perform at your best.
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What to Expect
Week 1 – 2
Dosing begins at 0.1mL twice weekly, for example Monday and Thursday. Early changes are internal rather than visible. Many users report deeper, more restorative sleep and improved morning recovery as growth hormone signaling rises. Nothing has changed on the outside yet, and that is expected.
Week 2 – 4
Sustained IGF-1 elevation begins showing up as improved energy, recovery, and stamina. Early body composition change starts. Waist measurements move before scale weight does, because visceral fat is being mobilized while lean mass is preserved. Measure your waist, not the scale.
Week 4 – 8
The standard course runs 4 to 8 weeks of consistent twice weekly dosing. Deep abdominal fat is a slow compartment to move, and it is consistency across the full course that produces the result. Your provider will reassess at the end of the protocol and advise on continuing.
* Individual results may vary. These statements have not been evaluated by the FDA. Tesamorelin is available by prescription only and requires physician evaluation and ongoing monitoring.
What It Does
Tesamorelin is a growth hormone releasing hormone analog. It does not put synthetic hormone into your body. It signals your own pituitary to release growth hormone in its natural rhythm, which is why it targets deep abdominal fat while preserving the feedback loop your body already uses.
Tesamorelin is the most studied peptide for visceral adipose tissue specifically, the deep fat packed around the organs beneath the abdominal wall. This is metabolically active fat that resists diet and training, and it behaves very differently from the subcutaneous fat you can pinch. Elevated growth hormone signaling drives lipolysis preferentially in this compartment.
This is the core distinction. Synthetic HGH floods the system with a constant external supply and suppresses your own production over time. Tesamorelin stimulates the pituitary to release growth hormone in natural pulses, and the body's negative feedback loop stays intact. Somatostatin can still regulate output, which is why the physiological profile is meaningfully different from exogenous hormone.
Growth hormone and the IGF-1 it drives are central to preserving lean muscle mass while fat is being mobilized. The result is a recomposition effect rather than simple weight loss. Users typically track this in waist circumference and how clothing fits rather than in scale weight, because losing visceral fat while holding lean tissue may barely move the number on the scale.
Your largest natural growth hormone pulse occurs during deep slow wave sleep. Tesamorelin is dosed at bedtime specifically to amplify that existing pulse rather than fight it. Many users report deeper, more restorative sleep within the first few weeks, which is often the earliest noticeable change and precedes any visible body composition shift.
Visceral fat is not inert storage. It is an endocrine organ that secretes inflammatory signals and is closely tied to triglyceride levels and metabolic health. Clinical research on tesamorelin has tracked improvements in triglycerides alongside visceral fat reduction. Because growth hormone can affect glucose handling, blood sugar should be monitored by your physician throughout.
Growth hormone and IGF-1 signaling decline steadily with age, and that decline tracks with reduced energy, slower recovery, and changes in body composition. Restoring a more youthful pulsatile pattern is the underlying rationale for tesamorelin use in longevity protocols. Research into GHRH analogs and cognitive function is ongoing and early.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Tesamorelin is available by prescription only and requires physician evaluation and ongoing monitoring.
The Science
One signal, four stages. Tesamorelin does not replace your growth hormone. It speaks to the gland that makes it, amplifying a pulse your body is already trying to produce.
Using the pen injector, the prescribed dose is administered subcutaneously into the abdomen. Timing is not arbitrary. Tesamorelin is dosed at night because the body's largest natural growth hormone pulse happens during deep slow wave sleep. Injecting at bedtime aligns the peptide with that existing rhythm instead of working against it, which is why an on schedule dose matters more here than with most peptides.
Tesamorelin is a stabilized analog of growth hormone releasing hormone, the signal your hypothalamus naturally sends to your pituitary. It binds the same GHRH receptors on the somatotroph cells in the anterior pituitary and delivers the same instruction, but it resists the enzymatic breakdown that clears natural GHRH from circulation within minutes. The message is the body's own. The peptide simply makes it last long enough to matter.
The pituitary responds by releasing your own growth hormone in natural pulses rather than the flat continuous elevation produced by injected synthetic HGH. That growth hormone travels to the liver and stimulates IGF-1 production, the downstream mediator behind most of its effects on tissue. Critically, the somatostatin brake stays functional. Your body retains the ability to regulate its own output, which is the physiological argument for a GHRH analog over exogenous hormone.
Elevated growth hormone signaling activates hormone sensitive lipase and drives lipolysis, the breakdown of stored triglycerides into free fatty acids the body can burn. Visceral adipose tissue is unusually responsive to this signal, which is why tesamorelin acts on deep abdominal fat rather than acting as a general weight loss agent. This is a cumulative process measured across months, not days. Consistent nightly dosing is what produces the result.
Why Lavi MD
Most peptide suppliers prioritize volume over patients. We were built differently — by a physician, for patients.
Physician on Staff
Sasson Moulavi, MD
Dispensing Physician · Chayim Therapeutics, LLC
West Palm Beach, FL
"Every product we offer is something I would prescribe to my own patients. Our formulations are designed for clinical outcomes — not marketing claims."
How We Operate
Built by a Physician, Not a Marketing Team
Lavi MD was founded under physician supervision. Every formulation, every dose, every protocol is reviewed by Dr. Moulavi before it reaches a patient — not outsourced to a contract manufacturer with no clinical input.
We Limit Shipping Days to Protect Your Product
We only ship Monday and Tuesday. That's a deliberate decision — it ensures your order arrives before the weekend and never sits in a carrier facility over two days without refrigeration. Most brands don't think that far ahead.
We Treat You Like a Patient, Not an Order Number
Our team includes clinical staff who understand what you're taking and why. If something goes wrong with your order — a warm shipment, a missing component, a question about your protocol — we fix it. No automated runaround.
Support body composition, recovery, and healthy aging with a peptide designed to stimulate your body’s natural growth hormone release. Tesamorelin helps promote fat metabolism, energy, and overall vitality while supporting muscle preservation and recovery. Experience improved body composition, enhanced recovery, and renewed energy to perform at your best.
| Pack Size | 1 Vial with 1 Pack of 21ct. Needles, 10 mg. (1 NEST Pen with 1 Vial), 2 Vials with 2 Packs of 21ct. Needles, 20 mg. (1 NEST Pen with 2 Vials), 3 Vials with 3 Packs of 21ct. Needles, 30 mg. (1 NEST Pen with 3 Vials), 4 Vials with 4 Packs of 21ct. of Needles, 40 mg. (1 NEST Pen with 4 Vials) |
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We hold ourselves to the standards set by the bodies advancing peptide science, so you can have full confidence in every product you receive.
American Peptide AssociationAmerican Peptide Association
The leading industry body advancing the science, safety, and standards of peptide research. Our membership reflects our commitment to purity, transparency, and responsible sourcing.
Official Member
SSRP InstituteSeeds Scientific Research and Performance Institute
A physician led institute advancing the clinical standards of peptide therapy and cellular medicine. Our membership reflects our commitment to evidence based, physician guided care.
Official Member
Tom H. –
Tesamorelin arrived in two days with the cold pack still frozen solid and dosing instructions right on the pen. Very professional operation.
Austin P. –
The travel case is a nice touch. Everything stays organized.
Gabriella N. –
Checkout was quick, and I received tracking information almost immediately.
Jordan W. –
Three months on tesamorelin. Down two inches on the waist without changing my diet.
Nicole B. –
I emailed a question about timing my tesamorelin dose around travel and got a real answer back from an actual physician, not a canned reply. Dr. Sass and the team have been excellent.