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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
Community-documented stacking protocols. Doses reflect community-reported and trial-described protocols, not a recommended regimen.
CJC-1295
100 mcg SC 2-3x/day
CJC-1295 no DAC
100 mcg same syringe
Gold standard GH stack
Ipamorelin
200-300 mcg
Broader GHRP receptor engagement
MK-677
20-25 mg oral PM
Sustained GH via different half-lives
BPC-157 + CJC-1295
250 mcg + 100 mcg
Bulking: GH + appetite + gut health
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 action; trial data document elevated blood glucose as a GH-mediated effect, with diabetic and insulin-resistant subjects identified as a higher-risk population in endocrinology research
Reduced GH response — prolonged continuous use may attenuate the ghrelin-receptor response; community sources cycle to manage this
Cancer caution — elevated GH/IGF-1 has raised theoretical oncological concern in the literature; GH-secretagogue trial protocols have systematically excluded subjects with active malignancy
mg to Units Conversion
On a standard 100-unit insulin syringe, each "unit" equals 0.01 mL (so 100 units = 1 mL). Once GHRP-6 is reconstituted, the conversion from a target dose to syringe units depends on the chosen dilution.
The two reconstitution ratios most often described in community protocols are below.
Reconstitution A: 5 mg vial + 2 mL BAC water (2.5 mg/mL) — the standard dilution from the Quick Reference above.
50 mcg
0.02 mL
2 units
100 mcg
0.04 mL
4 units
150 mcg
0.06 mL
6 units
200 mcg
0.08 mL
8 units
Reconstitution B: 5 mg vial + 5 mL BAC water (1 mg/mL) — more BAC water for larger, easier-to-measure draws.
0.05 mL
5 units
0.1 mL
10 units
0.15 mL
15 units
0.2 mL
20 units
These conversions reflect the dilutions documented in community reconstitution protocols. They report how the math is described, not a recommended dosing schedule.
Core Supplies for This Protocol
The three essentials for running any reconstituted injectable: cold storage, accurate syringes, and metabolic tracking.
Cooluli Classic 4L Mini Fridge
Compact thermoelectric mini-fridge with heat/cool toggle. The most-mentioned dedicated peptide-storage fridge in research community sources — fits ~20 vials and runs quietly.
BD Ultra-Fine 31G 0.3cc 5/16" Insulin Syringes (Box of 90)
0.3cc 31G syringes — each gradation marks 1 unit (vs 2 units on 1cc), making sub-50-unit peptide doses accurate. BD Ultra-Fine is the most widely-cited brand in peptide community sources.
CONTOUR NEXT GEN Glucose Meter All-In-One Kit
Ascensia's CONTOUR NEXT GEN — the most clinically-validated home glucose meter. Includes 20 test strips + lancing device. Tracks the blood-sugar response GLP-1 users care about, especially during dose escalation.
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