GHRP-6 Dosing: 100mcg 3x/Day + Hunger Control

GHRP-6 is a synthetic hexapeptide that potently stimulates growth hormone secretion through the ghrelin/GHS receptor — and the most hunger-inducing GHRP available. This is not medical advice.

Quick Reference: Community Protocol

GHRP-6 is not in the standard cheat sheet — this is a community protocol based on research literature and anecdotal reports.

For the full GHRP-6 peptide profile and comparison guides, see our GHRP-6 Complete Guide and GHRH vs GHRP comparison.

Cycling Details

GHRP-6 doesn't require a loading phase. Start at 100 mcg once daily (bedtime) during Week 1 to gauge hunger response, then increase to 100 mcg 2-3x daily for weeks 2-16. Three daily injections provide pulsatile GH release mimicking natural secretion patterns.

Extended GHRP-6 use may lead to pituitary desensitization. The 8-16 week on / 4-8 week off approach helps maintain receptor sensitivity. Always inject on an empty stomach (at least 2 hours after eating) and wait 20-30 minutes before consuming food.

Routes of Administration

Subcutaneous (standard): Lower abdomen or love handles, rotate daily. Volume is small (0.04-0.12 mL). Use 29-31 gauge insulin syringe. GH release begins within 5-15 minutes; hunger within 15-30 minutes.

Oral (studied but less effective): GHRP-6 retains some GH-releasing activity orally, though at significantly lower potency than subcutaneous (Bowers et al., 1995).

Reconstitution Quick Reference

Math: 5,000 mcg / 2 mL = 2,500 mcg/mL. 100 mcg / 2,500 = 0.04 mL = 4 units. Swirl gently, refrigerate, use within 28 days.

For step-by-step reconstitution instructions, see the BPC-157 reconstitution guide — same technique applies to all lyophilized peptides.

Where These Numbers Come From

GHRP-6 has more human clinical data than many research peptides, as it was extensively studied in endocrinology research.

GHRP-6 stimulates GH secretion both in vitro and in vivo through phosphatidylinositol turnover in pituitary somatotroph cells (Lei & Bhargava, 1995). Research established that GHRP-6 requires endogenous hypothalamic GHRH for maximal GH stimulation, explaining the synergistic effects when co-administered with GHRH analogs (Pandya et al., 1998).

Beyond GH release, GHRP-6 has demonstrated cardioprotective and cytoprotective properties independent of GH pathways, acting through GH secretagogue receptor-mediated mechanisms (Berlanga-Acosta et al., 2017).

GHRP-6 activates the ghrelin receptor (GHS-R1a), the same receptor stimulated by endogenous ghrelin. Central administration activates appetite centers in the hypothalamus, including orexin-containing neurons (Wren et al., 2001). The 100 mcg per injection dose is considered near the saturation dose — higher amounts don't meaningfully increase per-bolus GH output.

Stacking Protocols

GHRP-6 and GHRH analogs can be combined in the same syringe. Both require empty stomach. Each GHRP has a per-injection ceiling — stacking doesn't bypass individual receptor saturation.

Side Effects & Safety

• Intense hunger — 15-30 minutes post-injection, lasts 30-60 minutes. Most pronounced of all GHRPs
• Water retention — mild, GH-mediated fluid retention in hands/feet
• Cortisol elevation — dose-dependent, more significant than ipamorelin or GHRP-2
• Prolactin elevation — mild at standard doses; more pronounced above 200 mcg
• Blood sugar effects — GH opposes insulin; monitor if diabetic or insulin-resistant
• Pituitary desensitization — prolonged continuous use may reduce receptor sensitivity; cycling prevents this
• Cancer caution — elevated GH/IGF-1 is theoretically concerning; avoid with active malignancy

Frequently Asked Questions

What is the standard GHRP-6 dose?

100 mcg subcutaneous 2-3 times daily on an empty stomach. This is considered near the saturation dose for maximal GH release per injection.

Does GHRP-6 increase hunger?

Yes — significantly. GHRP-6 activates the ghrelin receptor, producing intense hunger 15-30 minutes post-injection. This is the most pronounced appetite effect of any GHRP, making it beneficial for bulking but challenging for cutting.

Should GHRP-6 be taken on an empty stomach?

Yes — fats and carbohydrates blunt the GH response. Wait at least 2 hours after eating, and 20-30 minutes after injection before consuming food.

How does GHRP-6 compare to GHRP-2?

GHRP-6 causes much more hunger. GHRP-2 may produce slightly higher GH output per dose with less appetite stimulation and lower cortisol/prolactin elevation. Choose GHRP-6 if appetite stimulation is desired.

Can GHRP-6 be stacked with CJC-1295?

Yes — this is the standard GH-releasing stack. The combination produces synergistic GH release far exceeding either peptide alone. They can be mixed in the same syringe.

How do I reconstitute GHRP-6?

Add 2 mL bacteriostatic water to a 5 mg vial (2,500 mcg/mL). 100 mcg = 4 units on an insulin syringe. Swirl gently, refrigerate, use within 28 days.

Related Guides

• GHRP-6 Complete Guide — full profile, research, and comparison
• GHRP-2 Dosing Guide — lower-hunger alternative GHRP
• Ipamorelin Dosing Guide — cleanest GHRP, no hunger/cortisol
• Hexarelin Dosing Guide — strongest GHRP by GH output
• CJC-1295 + Ipamorelin Guide — GHRH+GHRP combination protocols
• GHRH vs GHRP — understanding the two classes of GH secretagogues
• Calculate Your GHRP-6 Cycle Cost — estimate vials needed and total cost for your protocol
• Peptides and TRT: 8 Synergies That Amplify Results — how GHRP-6 pairs with testosterone replacement therapy
• Best Peptides for Muscle Growth (2026) — all 10 muscle-building peptides ranked

References

For educational and research purposes only. This is not medical advice. GHRP-6 has clinical research data but is not FDA-approved for general use.