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Educational comparison - not medical advice. This page compares two compounds for informational purposes. Neither is recommended as treatment. Any protocol decision is a conversation with your licensed healthcare provider.
Home/Peptides/HGH vs Tesamorelin
HEAD-TO-HEAD COMPARISON

HGH vs Tesamorelin

Users researching the trade-off between direct hormone replacement and axis-stimulating peptides.

QUICK ANSWER

HGH (somatropin) is direct exogenous recombinant growth hormone - bypasses the pituitary entirely. Tesamorelin stimulates the pituitary to release endogenous GH. Key specs: HGH (Growth, ~2–3 hours, Subcutaneous) vs Tesamorelin (Growth, ~26 minutes, Subcutaneous (abdominal)).

OPTION A
HGH
Human Growth Hormone (Somatropin)
Exogenous recombinant GH - the direct-injection option vs the pulsatile secretagogue approach.
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OPTION B
Tesamorelin
Tesamorelin (Egrifta)
FDA-approved GHRH analog with the strongest IGF-1 response of any peptide in its class.
Full profile →
THE CORE DIFFERENCE

HGH (somatropin) is direct exogenous recombinant growth hormone - bypasses the pituitary entirely. Tesamorelin stimulates the pituitary to release endogenous GH. HGH produces larger and more predictable IGF-1 elevation but suppresses the natural axis, carries higher insulin-resistance risk, and has a greyer legal status. Tesamorelin preserves pulsatility and the body's feedback loops. Most optimization users prefer tesamorelin unless specifically indicated.

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FEATURE COMPARISON
HGH
Tesamorelin
Full name
Human Growth Hormone (Somatropin)
Tesamorelin (Egrifta)
Category
Growth
Growth
FDA status
FDA-approved for specific pediatric and adult GH-deficiency indications. Off-label use is legally grey.
FDA-approved as Egrifta for HIV-associated lipodystrophy. Widely used off-label.
Half-life
~2–3 hours
~26 minutes
Typical dosing
1–4 IU daily (0.33–1.33 mg); optimization dosing typically 1–2 IU
1–2 mg nightly, subcutaneous, on an empty stomach
Route
Subcutaneous
Subcutaneous (abdominal)
Classification
Recombinant 191-amino-acid protein identical to endogenous hGH
Synthetic GHRH (growth hormone releasing hormone) analog
BIOMARKERS COMMONLY TRACKED
On HGH
  • • IGF-1
  • • IGFBP-3
  • • Fasting glucose
  • • Fasting insulin
  • • HbA1c
  • • Thyroid panel
  • • Hematocrit
On Tesamorelin
  • • IGF-1 (primary)
  • • IGFBP-3
  • • Fasting glucose
  • • HbA1c
  • • Fasting insulin
CALCULATOR
HGH reconstitution →
CALCULATOR
Tesamorelin reconstitution →
CONDITIONS USERS RESEARCH THESE FOR
Informational only - neither compound is presented as a treatment for any condition. These are contexts in which users research these compounds and discuss them with their licensed provider.
RECOVERY
Poor Sleep Quality
Chronic insufficient or fragmented sleep - upstream of most metabolic, hormonal, and cognitive markers.
METABOLIC
Elevated Visceral Fat
The metabolically-active abdominal fat linked to cardiovascular + insulin-resistance risk. Hard to see; visible in labs.
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FREQUENTLY ASKED QUESTIONS

What is the difference between HGH and Tesamorelin?

HGH (somatropin) is direct exogenous recombinant growth hormone - bypasses the pituitary entirely. Tesamorelin stimulates the pituitary to release endogenous GH. HGH produces larger and more predictable IGF-1 elevation but suppresses the natural axis, carries higher insulin-resistance risk, and has a greyer legal status. Tesamorelin preserves pulsatility and the body's feedback loops. Most optimization users prefer tesamorelin unless specifically indicated.

Who typically researches HGH vs Tesamorelin?

Users researching the trade-off between direct hormone replacement and axis-stimulating peptides. HGH (Growth, ~2–3 hours, Subcutaneous) and Tesamorelin (Growth, ~26 minutes, Subcutaneous (abdominal)) differ in mechanism and dosing cadence - the right choice depends on protocol goals, biomarker baseline, and provider guidance. MyProtocolStack lets you log doses and lab values for both side-by-side if you're cycling between them.

What blood markers do users track on HGH or Tesamorelin?

Biomarkers commonly tracked across HGH and Tesamorelin protocols include IGF-1, IGFBP-3, Fasting glucose, Fasting insulin, HbA1c, Thyroid panel, Hematocrit, IGF-1 (primary). Establishing a baseline before starting and re-drawing at consistent intervals lets you measure each compound's effect against your own reference point - generic lab ranges are less informative than your personal trend over time. MyProtocolStack tracks these biomarkers in the context of whichever compound you're currently running.

Whichever you're tracking, we built the dashboard for it.

Log doses, upload labs, watch the biomarkers trend. StackAI reads your panel in context of what you're actually running.

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Informational comparison only - not medical advice. Research-stage compounds discussed are not FDA-approved unless specifically noted. Any protocol decision should be made with a licensed healthcare provider.