GHRP-6
GHRP-6 is a growth hormone releasing peptide studied for its role in stimulating endogenous growth hormone secretion through ghrelin receptor activation. It interacts with the GHS-R1a receptor, influencing GH pulsatility and appetite-related signaling pathways. In research settings, GHRP-6 has been observed to support anabolic hormone activation, recovery-related processes, and metabolic modulation. Formulated in a stabilized pre-mixed injection pen for research use only.
Price range: 39,00 € through 66,00 €
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GHRP-6 - Growth Hormone Release & Appetite Signaling
Description
GHRP-6 is a synthetic growth hormone releasing peptide belonging to the ghrelin mimetic family. It binds to the growth hormone secretagogue receptor (GHS-R1a), stimulating pulsatile release of growth hormone from the anterior pituitary. In addition to GH stimulation, GHRP-6 is known for its influence on appetite regulation and metabolic signaling pathways.
GHRP-6 has been studied in both animal and exploratory human research for its ability to increase circulating growth hormone levels. Activation of the ghrelin receptor also influences hypothalamic circuits involved in hunger and energy balance. Research domains include anabolic hormone modulation, appetite signaling, and recovery-focused endocrine studies.
Clinical Status
Human RCT ▣ | Observational ▣ | Animal ✔ | In vitro ✔
Primarily studied in preclinical and exploratory human growth hormone and appetite signaling research contexts.
Mechanism of Action
GHRP-6 stimulates natural growth hormone release by activating ghrelin receptors in the hypothalamus and pituitary gland. This activation increases pulsatile GH secretion while also influencing appetite-related neural circuits.
Unlike selective secretagogues such as Ipamorelin, GHRP-6 demonstrates broader receptor activity and may influence additional endocrine pathways including ACTH release in experimental settings. Increased GH stimulates hepatic IGF-1 production, activating downstream PI3K/Akt/mTOR pathways associated with protein synthesis and tissue repair. The combined endocrine and hypothalamic engagement gives GHRP-6 a distinct metabolic and appetite-related signaling profile.
Benefits
- Stimulates natural growth hormone secretion:
GHRP-6 activates the body’s own growth hormone release by binding to ghrelin receptors in the pituitary. Rather than introducing external hormone, it stimulates endogenous GH pulses. Growth hormone is normally released in short bursts, and GHRP-6 amplifies this pulsatile pattern. This physiological stimulation supports natural endocrine rhythms rather than bypassing them. The pulsatile release is considered important for receptor sensitivity and downstream IGF-1 signaling. - Engages the GH–IGF anabolic cascade:
When growth hormone increases, the liver responds by producing IGF-1. IGF-1 then activates intracellular pathways such as PI3K and mTOR, which regulate protein synthesis. Through this cascade, GHRP-6 indirectly supports anabolic signaling in muscle and connective tissues. This stepwise hormonal sequence mirrors natural endocrine physiology. - Influences appetite and hunger signaling:
GHRP-6 mimics ghrelin, often referred to as the hunger hormone. Activation of hypothalamic neurons increases signaling related to food intake. This appetite-related effect distinguishes GHRP-6 from more selective GH secretagogues. In research settings, this dual action links anabolic hormone release with energy intake regulation. - Supports metabolic adaptation pathways:
By interacting with ghrelin and growth hormone systems simultaneously, GHRP-6 integrates endocrine and metabolic signaling. Growth hormone influences lipid metabolism and nutrient utilization, while ghrelin pathways regulate caloric intake. This combined signaling profile positions GHRP-6 within metabolic research domains. - Promotes recovery-related hormonal signaling:
Growth hormone plays a central role in tissue repair and regeneration. Through endogenous stimulation, GHRP-6 activates recovery-related pathways associated with cellular growth and structural adaptation. This makes it relevant in experimental models focused on muscle repair and anabolic recovery. - Activates hypothalamic-pituitary communication:
GHRP-6 works at both hypothalamic and pituitary levels. It stimulates hypothalamic neurons that influence GH release while also acting directly on pituitary somatotroph cells. This dual-site activation enhances overall hormone output in controlled research contexts. - Influences additional endocrine pathways:
Compared to highly selective secretagogues, GHRP-6 may also influence ACTH and cortisol signaling in experimental models. This broader endocrine interaction reflects its ghrelin-mimetic nature. Understanding this wider hormonal engagement is important in research focused on systemic endocrine responses. - Provides sustained anabolic signaling environment:
Repeated stimulation of GH pulses increases cumulative exposure to downstream anabolic pathways. Through continued activation of the GH–IGF axis, GHRP-6 contributes to a sustained growth signaling environment in laboratory models. This layered hormonal response differentiates it from direct receptor agonists acting only at peripheral tissues.
Research Data
| Study / Model | Reported effect |
|---|---|
| Healthy adult male volunteers | ↑ GH secretion following single subcutaneous administration; dose-dependent pulsatile response |
| Rodent appetite model | ↑ Food intake and body weight gain via ghrelin receptor activation |
| In vitro pituitary cell culture | ↑ GH release through GHS-R1a-mediated calcium signaling |
| Cardiac ischemia model (rats) | Reduced infarct size and improved cardiomyocyte survival |
| GH-deficient pediatric study | ↑ Serum GH and IGF-1 levels following repeated administration |
| Aged rat model | Partial restoration of GH pulsatility and lean tissue markers |
| Wound healing rodent model | Accelerated tissue repair and collagen deposition |
Stack Suggestions
GHRP-6 is often combined in research with:
- GHRP-6 + CJC-1295 → Synergistic stimulation of GH pulsatility through combined GHRH and ghrelin receptor activation.
- GHRP-6 + Ipamorelin → Broader secretagogue coverage with complementary GHS-R1a engagement profiles.
- GHRP-6 + BPC-157 → Supports recovery and tissue repair models alongside GH-mediated regenerative pathways.
- GHRP-6 + MOD-GRF (1-29) → Enhanced GH amplitude through dual hypothalamic-pituitary axis modulation.
⚠ Stacks are for experimental design only; not safety or efficacy guidance.
Pen Dosage Chart
| GHRP-6 Pen 5 mg | |
|---|---|
| Volume | 2.0 mL (after reconstitution) |
| mg/mL | 2.5 mg/mL |
| Click-to-Dose | 1 click = 0.025 mg |
| Example(s) | 4 clicks = 0.1 mg; 10 clicks = 0.25 mg |
| GHRP-6 Pen 10 mg | |
|---|---|
| Volume | 2.0 mL (after reconstitution) |
| mg/mL | 5.0 mg/mL |
| Click-to-Dose | 1 click = 0.05 mg |
| Example(s) | 2 clicks = 0.1 mg; 6 clicks = 0.3 mg |
Dosage & Protocols Variations
Standard Research Protocol
- Dose: 0.1 – 0.15 mg (variant 5 mg pen = 4–6 clicks / variant 10 mg pen = 2–3 clicks)
- Duration: 8 – 12 weeks
- Frequency: 2 – 3× daily (pre-meal or pre-sleep)
- Cycle Interval: 4 weeks off before repeating
- Goal / Description: Baseline GH stimulation and appetite signaling research.
Therapeutic Research Protocol
- Dose: 0.15 – 0.3 mg (variant 5 mg pen = 6–12 clicks / variant 10 mg pen = 3–6 clicks)
- Duration: 6 – 8 weeks
- Frequency: 3× daily, subcutaneous
- Cycle Interval: 4 – 6 weeks off before repeating
- Goal / Description: Higher-intensity GH pulsatility and recovery-focused models.
Stacked Protocol (GHRP-6 + CJC-1295)
- Dose: 0.1 mg GHRP-6 + 0.1 mg CJC-1295 (variant 5 mg pen = 4 clicks / variant 10 mg pen = 2 clicks)
- Duration: 8 – 12 weeks
- Frequency: 2× daily, pre-sleep and post-training
- Cycle Interval: 4 weeks off before repeating
- Goal / Description: Synergistic GHRH + ghrelin pathway activation for amplified GH response.
Possible Side Effects
GHRP-6 is generally well-tolerated in animal and limited human research studies, with most reported effects being mild and transient.
Observed side effects in research models include:
- Marked increase in appetite and hunger sensations.
- Transient elevations in cortisol and prolactin levels.
- Mild water retention or facial flushing shortly after administration.
- Localized irritation, redness, or tingling at the injection site.
- Temporary fatigue or drowsiness following higher doses.
No evidence of severe endocrine, hepatic, or cardiovascular adverse effects has been observed in available preclinical data. Long-term safety in humans remains insufficiently characterized, and GHRP-6 is restricted to experimental and laboratory research.
Product Attributes
- CAS #: 87616-84-0
- Molecular Formula: C46H56N12O6
- Sequence (AA): HWAWFK-NH2 (His-D-Trp-Ala-Trp-D-Phe-Lys-NH2)
- Molecular Weight: 873.0 g/mol
- PubChem CID: 6918245
- Half-Life: ~15-60 minutes
- Synonyms: Growth Hormone Releasing Peptide-6, GHRP6, SKF-110679, Ghrelin Mimetic Hexapeptide
- Type: Synthetic research peptide (ghrelin receptor agonist / GH secretagogue)
- Research Focus: Growth Hormone & IGF-1, Recovery & Performance
Scientific References
- Growth hormone-releasing peptide-6 stimulates GH secretion acting on the ghrelin receptor Animal | In vitro
- Ghrelin and growth hormone secretagogue receptor signaling in appetite and metabolism Animal | In vitro
- Effects of GHRP-6 on GH and prolactin secretion in healthy subjects Observational
- Cardioprotective effects of growth hormone-releasing peptides in experimental models Animal | In vitro
- GHRP-6 stimulates food intake and growth hormone release in rats Animal
- Growth hormone secretagogues: physiological role and clinical utility Observational | Animal
- GHRP-6 mechanism, research and effects overview Observational | Animal | In vitro
Included In The Box
Every product arrives in a premium, custom-designed PEPTIDE.Power box, engineered for convenience, hygiene, and safe storage in your refrigerator. Inside, you will find everything needed for your full research protocol:
- 1× Disposable Pre-Mixed Injection Pen
- Powered by our proprietary PSM Technology™ – precision stabilization & mixing system for consistent potency
- 10× Ultra-thin Needles (33G, 4 mm)
- 10× Alcohol Pads for sterile preparation
- Internal Stabilizing Foam Insert to prevent shaking during transport
- Instruction Panel printed on the inside of the box for quick reference
- Security Seal Sticker ensuring the package has not been opened or tampered with
Storage
Store the product in a refrigerator at 1 – 8°C immediately upon delivery. To maintain optimal stability, keep the pen away from light, and do not expose it to repeated temperature changes.
Once reconstituted (all our pens come pre-mixed), research compounds remain stable for 6 – 8 weeks under proper refrigeration.
Do not freeze after reconstitution. Always keep the box closed so the pen, needles, and alcohol pads stay clean and protected.
For best results, use the product consistently within the recommended time window and always follow your research protocol.
Delivery
We ship with Next-Day EU Delivery via DHL Express or UPS Express.
All orders are prepared fresh on the day of dispatch, placed in EPS Cold-Chain Transport Boxes, and shipped with cooling elements to maintain a stable temperature throughout the journey.
Our logistics process is designed so the package arrives overnight, avoiding customs delays inside the European Union.
Products are shipped from our EU facility, ensuring no import duties, no customs clearance, and always fast and secure delivery.
Payment
Due to the nature of research peptides and the high-risk category assigned by payment processors, credit card companies do not generally support merchants in this field.
For this reason, we accept mainly Bank Transfers.
We also work with a crypto payment provider, and from time to time, card payments may be available depending on processor availability.
Within the European Union, SEPA transfers are fast, low-cost, and usually arrive within minutes to a few hours, making the payment process smooth and simple.
Once the transfer is received, your order is prepared immediately and dispatched the same day, depending on the daily cut-off time.
Please note that we do not dispatch shipments on Fridays or on days before official public holidays. This is done to ensure that parcels can be delivered on the next working day and are not held in transit over weekends or holidays.
This method ensures compliance, security, and continuity of service for all customers across the EU.
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