Side-by-side comparison: effects, dosing ranges, side effects, regulatory status, and reconstitution.
Peptide A
Weight Management
The unmodified C-terminal fragment of growth hormone — the original lipolytic peptide.
Peptide B
Growth Hormone
FDA-approved GHRH analog for HIV-associated lipodystrophy with potent GH-releasing activity.
Typical vial
5 mg
Typical dose
250-500 mcg
Half-life
~30 minutes
FDA status
Not FDA approved. Distinct from AOD-9604, which holds GRAS s…
Typical vial
2 mg
Typical dose
1000-2000 mcg
Half-life
~26 minutes
FDA status
FDA approved. Egrifta (tesamorelin) approved November 2010 f…
HGH Fragment 176-191 effects
Tesamorelin effects
HGH Fragment 176-191 side effects
Tesamorelin side effects
HGH Fragment 176-191 dosing ranges
Fat loss / body recomposition
250-500 mcg · Once daily, morning, on an empty stomach (SubQ) · 8-12 weeks
Split-dose protocol for stubborn fat
250 mcg · Twice daily (morning + pre-cardio), fasted · 8-12 weeks
Tesamorelin dosing ranges
HIV lipodystrophy (FDA approved)
2000 mcg · Once daily (SubQ) · Ongoing as prescribed
Body composition / anti-aging (off-label)
1000-2000 mcg · Once daily · 8-12 weeks
HGH Fragment 176-191: The unmodified C-terminal fragment of growth hormone — the original lipolytic peptide. Typical dose 250-500 mcg. Tesamorelin: FDA-approved GHRH analog for HIV-associated lipodystrophy with potent GH-releasing activity. Typical dose 1000-2000 mcg. Both fall under the Weight Management and Growth Hormone categories.
Stacking HGH Fragment 176-191 with Tesamorelin is a protocol-design question best raised with a clinician — it depends on your goal, current bloodwork, and whether both peptides target overlapping mechanisms. Both peptides should be tracked independently with separate injection sites and timing. PinnyPeptide supports multi-peptide stacks with automatic injection site rotation.
HGH Fragment 176-191 is typically dosed: Once daily, morning, on an empty stomach (SubQ) for Fat loss / body recomposition; Twice daily (morning + pre-cardio), fasted for Split-dose protocol for stubborn fat. Tesamorelin is typically dosed: Once daily (SubQ) for HIV lipodystrophy (FDA approved); Once daily for Body composition / anti-aging (off-label).
HGH Fragment 176-191: Not FDA approved. Distinct from AOD-9604, which holds GRAS status as a food additive. Tesamorelin: FDA approved. Egrifta (tesamorelin) approved November 2010 for reduction of excess abdominal fat in HIV-infected patients with lipodystrophy. Egrifta SV (reformulated single-vial) approved 2019.
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