Gonadorelin vs HGH Fragment 176-191

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

Gonadorelin

Gonadorelin is a synthetic form of gonadotropin-releasing hormone (GnRH). It stimulates the pituitary to release luteinizing hormone (LH) and follicle-stimulating hormone (FSH), supporting natural hormone production.

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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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Side-by-Side Comparison

AspectGonadorelinHGH Fragment 176-191
MechanismBinds to GnRH receptors in the pituitary gland, triggering pulsatile release of LH and FSH. This stimulates testicular or ovarian function and natural sex hormone production.Mimics the lipolytic region of growth hormone, stimulating fat breakdown and inhibiting lipogenesis without affecting blood sugar or promoting growth. Works independently of GH receptors.
Typical DosageMen: 100-200mcg subcutaneously 2-3 times daily. Women (fertility): Per clinical protocol. HRT support: Often combined with other therapies.Typical dosing: 250-500mcg daily, often split into 2-3 doses. Usually administered on empty stomach, often with fasted cardio.
AdministrationSubcutaneous injection. Pulsatile administration mimics natural GnRH release patterns. Often used during or after testosterone therapy.Subcutaneous injection. Best results when used fasted and combined with exercise. Avoid eating for 30 minutes post-injection.
Side EffectsHeadache, flushing, injection site reactions. In women may cause ovarian hyperstimulation. Generally well-tolerated.Generally well-tolerated. May cause injection site irritation, temporary lethargy, or headache. Does not affect blood glucose significantly.
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Key Differences

Unique to Gonadorelin:

Unique to HGH Fragment 176-191:

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