HomePeptide Guides → Fragment 176-191 (HGH Frag)

Fragment 176-191 (HGH Frag)

Metabolic Fat Loss
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How It Works

Fragment 176-191 is a stabilized peptide fragment from the C-terminal region of growth hormone. It stimulates lipolysis (fat breakdown) by activating hormone-sensitive lipase in adipocytes and inhibits lipogenesis (new fat formation). Unlike full HGH, it does not compete for HGH receptors and does not affect IGF-1 levels or blood glucose.

Key Research Findings

Common Research Protocols

Research Dosing Range
250–500 mcg administered subcutaneously 1–2 times daily on an empty stomach. Best administered in the morning fasted or before exercise. Cycles run 8–12 weeks. Often combined with AOD 9604 or CJC-1295/Ipamorelin for enhanced body composition results.

Use our free dosing calculator to determine exact syringe units after reconstitution.

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Reconstitution Guide

Follow these steps to properly reconstitute Fragment 176-191 (HGH Frag) for research use:

Use the dosing calculator to calculate your exact concentration (mcg per unit) and how many units to draw on your syringe.

Frequently Asked Questions

How does Fragment 176-191 (HGH Frag) work?
Fragment 176-191 is a stabilized peptide fragment from the C-terminal region of growth hormone. It stimulates lipolysis (fat breakdown) by activating hormone-sensitive lipase in adipocytes and inhibits lipogenesis (new fat formation). Unlike full HGH, it does not compete for HGH receptors and does not affect IGF-1 levels or blood glucose.
What are the key research findings?
  • 12.5x more potent for fat loss than full-length HGH in studies
  • Does not affect blood sugar levels or promote insulin resistance
  • Specific to fat metabolism without anabolic effects on other tissues
  • May support cartilage regeneration in addition to fat loss
What is the typical dosing protocol?
250–500 mcg administered subcutaneously 1–2 times daily on an empty stomach. Best administered in the morning fasted or before exercise. Cycles run 8–12 weeks. Often combined with AOD 9604 or CJC-1295/Ipamorelin for enhanced body composition results.
How should Fragment 176-191 (HGH Frag) be stored?
Unreconstituted powder should be stored in a freezer or refrigerator away from light and moisture. Once reconstituted with bacteriostatic water, refrigerate at 36–46°F (2–8°C) and use within 4–6 weeks. Never freeze reconstituted peptides.

Need to Calculate Your Fragment 176-191 (HGH Frag) Dose?

Use our free reconstitution calculator for precise syringe measurements.

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