GHRP-6
Growth Hormone Releasing Peptide-6
GHRP-6 is one of the first synthetic growth hormone releasing peptides. It strongly stimulates growth hormone release through the ghrelin receptor. It also notably increases appetite, which may be desirable or undesirable depending on research goals.
Buy GHRP-6 at Peptide PalacePurity
99%+
Molecular Weight
873.01 g/mol
Administration
Subcutaneous injection on empty stomach
Storage
Store at -20°C
Mechanism of Action
GHRP-6 acts as a ghrelin mimetic, binding to the growth hormone secretagogue receptor (GHS-R). This triggers a signaling cascade in the pituitary gland that results in growth hormone release. It also significantly increases appetite through the same receptor.
Sequence:
His-D-Trp-Ala-Trp-D-Phe-Lys-NH2 Chemical Structure
Research Areas
- Growth hormone deficiency
- Muscle wasting
- Appetite stimulation
- Anti-aging research
- Wound healing
Potential Benefits
- Potent GH release
- Increased appetite
- Improved recovery
- Enhanced muscle growth
- Better sleep
Research Dosing Guidelines
For research purposes only. Not for human consumption.
Typical Dose
100-300 mcg
Frequency
2-3 times daily
Duration
8-16 weeks
Administration
Subcutaneous injection on empty stomach
Best administered on empty stomach. Expect significant appetite increase.
Reconstitution Calculator
U-100 Insulin Syringe
4.0 units
2500 mcg/ml
0.040 ml
4.0 IU
50
For research and educational purposes only. Always follow proper reconstitution and sterile handling protocols.
Growth Hormone Secretagogue Comparison
GHRP-6 was one of the earliest synthetic GH secretagogues. Understanding how it compares to newer options helps researchers select the right tool for their protocol.
GH Secretagogue Landscape
| Factor | GHRP-6 | Ipamorelin | GHRP-2 |
|---|---|---|---|
| GH release strength | Strong | Moderate | Strongest |
| Appetite increase | Severe | Minimal | Moderate |
| Cortisol impact | Elevated | None | Slightly elevated |
| Prolactin impact | Elevated | None | Slightly elevated |
| Selectivity | Low | High | Moderate |
| Best for | Mass gain, appetite stimulation | Anti-aging, clean GH release | Maximum GH output |
GHRP-6 remains the preferred choice when appetite stimulation is desirable, such as in muscle-wasting or underweight research models. For cleaner GH release without hormonal side effects, Ipamorelin is the standard recommendation.
Potential Side Effects
- Increased appetite (significant)
- Water retention
- Cortisol increase
- Prolactin increase
- Tingling/numbness
Storage Requirements
Store at -20°C. Reconstituted at 2-8°C.
Research References
- [1]GHRP-6 and Growth Hormone Secretion (1993)Strong Evidence Population: Healthy adult volunteers (n=8)
GHRP-6 produced robust, dose-dependent growth hormone release significantly exceeding GHRH alone in healthy subjects.
Limitations: Very small sample size; single-dose acute study
- [2]GHRP-6 Stimulates Phosphatidylinositol Turnover in Pituitary (1995)Preclinical Population: Rat pituitary cell cultures
GHRP-6 activated phosphatidylinositol signaling pathways in pituitary cells, confirming its mechanism distinct from GHRH.
Limitations: In-vitro model; signaling dynamics may differ in vivo
Frequently Asked Questions
What is GHRP-6?
GHRP-6 (Growth Hormone Releasing Peptide-6) is one of the first synthetic growth hormone releasing peptides that strongly stimulates growth hormone release through the ghrelin receptor. It is notable for its significant appetite-stimulating effect alongside its potent GH-releasing properties.
What are the potential research benefits of GHRP-6?
Research indicates GHRP-6 may promote potent growth hormone release, stimulate appetite, improve recovery, and enhance muscle growth. It acts as a ghrelin mimetic, triggering a signaling cascade in the pituitary gland that results in substantial GH secretion.
How is GHRP-6 typically dosed in research?
GHRP-6 is typically administered at 100-300 mcg via subcutaneous injection on an empty stomach, two to three times daily. Research cycles generally span 8-16 weeks, and significant appetite increase should be expected as a normal pharmacological effect.
What are the side effects of GHRP-6?
Side effects of GHRP-6 may include significantly increased appetite, water retention, cortisol elevation, prolactin increase, and tingling or numbness. These effects are more pronounced compared to more selective GH secretagogues like Ipamorelin.
How should GHRP-6 be stored?
GHRP-6 should be stored at -20°C in lyophilized form for long-term preservation. Once reconstituted, the solution should be refrigerated at 2-8°C and used within the recommended timeframe.
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Buy at Peptide PalaceRelated Topics
Peptide Hormones and Their Functions
Peptide hormones are hydrophilic signaling molecules that bind cell surface receptors, triggering intracellular cascades via second messengers like cAMP and calcium.
Bioactive Peptides and Signaling Pathways
Bioactive peptides regulate physiology through GPCR and receptor tyrosine kinase signaling, functioning as hormones, neurotransmitters, and local mediators.
Safety & Reference
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