HGH Fragment 176-191 vs Substance P

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

HGH Fragment 176-191

HGH Fragment 176-191 is the fat-reducing portion of the growth hormone molecule. Unlike AOD-9604 (which has an additional tyrosine), this is the exact fragment of HGH responsible for lipolytic effects.

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Substance P

Substance P is an 11-amino acid neuropeptide involved in pain transmission, inflammation, and various neurological processes. While not used therapeutically itself, understanding it is crucial for pain research.

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Side-by-Side Comparison

AspectHGH Fragment 176-191Substance P
MechanismMimics the lipolytic region of growth hormone, stimulating fat breakdown and inhibiting lipogenesis without affecting blood sugar or promoting growth. Works independently of GH receptors.Binds primarily to NK1 receptors to transmit pain signals from peripheral nerves to the CNS. Also promotes inflammation, causes vasodilation, and stimulates immune cells.
Typical DosageTypical dosing: 250-500mcg daily, often split into 2-3 doses. Usually administered on empty stomach, often with fasted cardio.Not used as a therapeutic agent. NK1 receptor antagonists (blocking Substance P) are used clinically for chemotherapy-induced nausea.
AdministrationSubcutaneous injection. Best results when used fasted and combined with exercise. Avoid eating for 30 minutes post-injection.Research compound only. Therapeutic applications focus on blocking rather than administering Substance P.
Side EffectsGenerally well-tolerated. May cause injection site irritation, temporary lethargy, or headache. Does not affect blood glucose significantly.Administration would cause pain, inflammation, and neurogenic responses. Not given therapeutically.
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Key Differences

Unique to HGH Fragment 176-191:

Unique to Substance P:

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