⚕ EDUCATIONAL CONTENT · NOT MEDICAL ADVICE · CONSULT A QUALIFIED PHYSICIAN BEFORE ANY USE
PEPGAINS/LIBRARY/MUSCLE/TESAMORELIN
MUSCLE & RECOVERYFDA APPROVED

Tesamorelin.

FDA-approved GHRH analog with clean GH/IGF-1 elevation
AKA · Egrifta · TH9507
MUSCLE & RECOVERYLONGEVITYSUBCUTANEOUS

A stable 44-residue GHRH analog. FDA-approved for HIV-associated lipodystrophy; extensively studied off-label for visceral fat reduction in healthy adults. The only GHRH with meaningful human data at scale.

~40 minutes (extended receptor effect)
Half-life
3
Citations
1
Routes
2
Categories
Refrigerate
Storage
82
Popularity

AT A GLANCE.

§ 01 · TL;DR

THE QUICK READ.

A stable 44-residue GHRH analog. FDA-approved for HIV-associated lipodystrophy; extensively studied off-label for visceral fat reduction in healthy adults. The only GHRH with meaningful human data at scale.

Tells your pituitary to release growth hormone naturally. The GH elevation is pulsatile and physiological — not a GH replacement.

Rotate injection sites. Minimum 12-week cycle to see body composition changes.

WHAT IT MIGHT HELP WITH.

1
15–18% reduction in visceral adipose tissue over 26 weeks
2
IGF-1 elevation into healthy young-adult range
3
Improved body composition (lean mass retention)
4
Improved lipid profile — lower triglycerides
5
No known tachyphylaxis (effect persists with continued dosing)

HOW IT WORKS.

§ 02 · MECHANISM

Tells your pituitary to release growth hormone naturally. The GH elevation is pulsatile and physiological — not a GH replacement.

Stabilized GHRH(1-44)NH2 with an N-terminal trans-3-hexenoic acid modification that resists DPP-4 degradation. Binds GHRH receptors on pituitary somatotrophs, increases IGF-1 5-fold, preferentially reduces visceral adipose tissue (VAT) by ~15–18% in trials.

WHO IT'S FOR
  • Adults with abdominal visceral fat
  • Those seeking lean-preserving fat loss
  • Researchers tracking IGF-1 responses
WHO SHOULD AVOID
  • Active malignancy
  • Pregnancy / breastfeeding
  • Uncontrolled diabetes
  • Acute critical illness

THE RESEARCH.

§ 03 · 3 STUDIES
2007 · FINDING
CITED

Falutz et al. — Pivotal VAT reduction

N=412, 26-week RCT: 15.2% VAT reduction vs. placebo in HIV patients with lipodystrophy. Basis for FDA approval.

2014 · FINDING
CITED

Stanley et al. — MASH/NAFLD

Reduced hepatic fat fraction by 37% over 6 months in HIV patients with NAFLD.

2017 · FINDING

Clemmons review — body composition

Review of 5 trials: consistent ~15–18% VAT reduction, IGF-1 ~150 ng/mL baseline increase.

DOSING PROTOCOL.

§ 04 · DOSING
TYPICAL RANGE
Rotate injection sites. Minimum 12-week cycle to see body composition changes.
2mg subcutaneous daily
FREQUENCY
Most-cited schedule
Once daily (bedtime most common)
ROUTES
Delivery methods
SUBCUTANEOUS
HALF-LIFE
Steady state drives frequency
~40 minutes (extended receptor effect)
STORAGE
Protect from light, refrigerate
Refrigerate 2–8°C before
⚠ NOTE

These are reported protocols from research literature and practitioner accounts, not prescriptions. No FDA-approved human dose exists for research compounds. Anyone using Tesamorelin should work with a qualified physician and source from a supplier providing third-party COAs.

FORMS AVAILABLE
  • · Lyophilized vial, 2mg or 10mg
⚠ RESEARCH INFORMATION ONLY · NOT MEDICAL ADVICE

SIDE EFFECTS & RISKS.

§ 06 · SAFETY
·
Injection site reactions
Common (15%) · mild
·
Joint pain / stiffness
Common (10%) · mild

Related to IGF-1 elevation — typically resolves

·
Peripheral edema
Occasional · mild
Hyperglycemia
Monitored · moderate

Check fasting glucose if diabetic or pre-diabetic

WHERE TO SOURCE

§ 07 · SUPPLIER
PEAK LAB
PEPTIDES
SUPPLIER OF RECORD · 12 BATCHES PASSED

We tried nine suppliers across 2025 and kept picking PEAK LAB for Tesamorelin: 99.4% HPLC purity, COA on every batch, cold chain intact. Shop through our link and we earn a small commission — affiliate relationship is disclosed.

Visit PEAK LAB ↗
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