Tesamorelin
Tesamorelin is a synthetic 44-amino-acid GHRH analog with an N-terminal trans-3-hexenoic acid modification that enhances metabolic stability and receptor binding compared to native GHRH. It is the only GHRH analog currently FDA-approved as a therapeutic (brand name Egrifta/Egrifta SV), indicated for reduction of excess abdominal fat in HIV-infected patients with lipodystrophy. Its clinical evidence base is stronger than most peptides in the growth-hormone category, with multiple randomized controlled trials demonstrating significant visceral adipose tissue reduction, hepatic fat reduction, and lean mass preservation. For educational purposes only. Not medical advice. Tesamorelin acts as a full agonist at the GHRH receptor (GHRHR)
This content is for educational and research purposes only. VialBase does not provide medical advice. Consult a healthcare professional before using any peptide.
Mechanism
Modified GHRH(1-44) analog with N-terminal trans-3-hexenoic acid modification that increases stability and receptor affinity; stimulates pulsatile GH release from anterior pituitary via GHRHR/cAMP/PKA pathway
Dosing
FDA-approved dose is 2 mg SC daily. Compounded versions may vary. Administer on empty stomach.
Research summary
| Study | Type | Year | Key Finding |
|---|---|---|---|
| Recent Tesamorelin Research | Research article | 2026 | Ongoing investigation of tesamorelin applications beyond HIV lipodystrophy |
| Body composition, hepatic fat, metabolic, and safety outcomes of Tesamorelin, a GHRH analogue, in HIV-associated lipodystrophy: A meta-analysis of randomized controlled trials | Meta-analysis of RCTs | 2026 | 5 RCTs included; tesamorelin vs placebo in HIV adults |
| Pharmacologic Treatments for the Preservation of Lean Body Mass During Weight Loss | Narrative review | 2026 | Tesamorelin is a GHRH agonist being explored for muscle preservation during weight loss |
| Tesamorelin for Cognition in HIV-associated Neurocognitive Disorder | — | — | — |
Stacking & interactions
GHRH + GHRP synergy for enhanced GH pulse
Alternative GHRH analog (lower cost option)
Dual approach to visceral fat and metabolic health
Metabolic optimization with mitochondrial support
Stacks containing Tesamorelin
Sourcing
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What bloodwork do I need?
Reference ranges are general guidelines. Consult your physician for interpretation.
- IGF-1
- Fasting Glucose
- Fasting Insulin
- CMP
- CBC
- Lipid Panel
- IGF-1
- Fasting Glucose
- Fasting Insulin
- Lipid Panel
- IGF-1
- Fasting Glucose
- Lipid Panel
Safety & Regulatory Status
Regulatory status for Tesamorelin may change. Verify current status with your jurisdiction before use. This is not legal or medical advice.
References
- Various. Recent Tesamorelin Research. Various (2026). PMID: 41476424
- Badran AS, Helal A, Shata KS, Ayesh H. Body composition, hepatic fat, metabolic, and safety outcomes of Tesamorelin, a GHRH analogue, in HIV-associated lipodystrophy: A meta-analysis of randomized controlled trials. Obesity Research & Clinical Practice (2026). PMID: 41545261
- Multiple authors. Pharmacologic Treatments for the Preservation of Lean Body Mass During Weight Loss. Journal of Clinical Medicine (2026). PMID: 41598480
- Tesamorelin for Cognition in HIV-associated Neurocognitive Disorder.