How much BAC water do I add to a GHRP-6 vial?

GHRP-6 is typically supplied in 5–10 mg vials. Use 1–2 mL of BAC water. The calculator shows exact draw amounts for any combination.

What is the difference between GHRP-2 and GHRP-6?

Both are growth hormone secretagogues. GHRP-6 is known for a stronger appetite-stimulating effect compared to GHRP-2. The dosing math is handled identically in PepperCalc.

How should reconstituted GHRP-6 be stored?

Store at 2–8°C and use within 28 days. Protect from light. Lyophilized powder stores well at -20°C.

GHRP-6 Dosing Calculator & Protocol

What is GHRP-6?

GHRP-6 is a synthetic hexapeptide that acts as a ghrelin mimetic, binding GHS-R1a receptors in the pituitary gland and hypothalamus to trigger GH release. The compound's saturation dose is approximately 100 mcg — beyond which additional GH release is minimal but appetite stimulation and side effects continue to increase.

Unlike Ipamorelin and GHRP-2, GHRP-6 produces robust appetite stimulation through ghrelin-pathway activation. This can be considered a benefit for researchers studying caloric intake enhancement, or a drawback for those prioritizing body composition. It also elevates cortisol and prolactin more than newer GHRPs. It remains one of the foundational compounds in GHRP research with decades of published data.

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GHS-R1a Agonism

Potently binds ghrelin receptors in pituitary somatotrophs and hypothalamic neurons, triggering calcium-dependent GH release via PLC/IP3 signaling.

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Appetite Stimulation

Acts on ghrelin receptors in the hypothalamus and vagus nerve pathways, producing significant hunger increase — the most pronounced of all GHRPs.

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Somatostatin Suppression

Reduces somatostatin tone in the hypothalamus, further amplifying GH output — especially potent when co-administered with GHRH analogs.

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IGF-1 and Cortisol Elevation

Downstream GH drives IGF-1 increase. Also elevates cortisol and prolactin to a greater extent than Ipamorelin or GHRP-2.

Dosing Schedule

Parameters documented in published preclinical and clinical research.

⚠️ Research use only. The following documents parameters from published preclinical and clinical research. Not medical advice. Not for human consumption. Consult a licensed healthcare professional before any use.

Phase	Dose	Frequency	Duration	Notes
Start	50–100 mcg	Once daily (bedtime)	Days 1–7	Fasted SubQ. Expect significant appetite increase after injection.
Working dose	100 mcg	2× daily	Weeks 2–8	AM fasted + bedtime. Stack with CJC-1295 No DAC. Saturation dose — above 100 mcg adds minimal GH.
Advanced	100–300 mcg	3× daily	Weeks 3–12	Third dose post-workout. Some protocols use up to 300 mcg 3× daily for ghrelin and appetite research.
Off cycle	—	—	4 weeks	Off period to prevent receptor desensitization.

Phase

Dose

Frequency

Duration

Notes

Start

50–100 mcg

Once daily (bedtime)

Days 1–7

Fasted SubQ. Expect significant appetite increase after injection.

Working dose

100 mcg

2× daily

Weeks 2–8

AM fasted + bedtime. Stack with CJC-1295 No DAC. Saturation dose — above 100 mcg adds minimal GH.

Advanced

100–300 mcg

3× daily

Weeks 3–12

Third dose post-workout. Some protocols use up to 300 mcg 3× daily for ghrelin and appetite research.

Off cycle

—

4 weeks

Off period to prevent receptor desensitization.

Safety & Side Effects

✓ Generally Well Tolerated

Decades of published research data

Strong GH output at low saturation dose (100 mcg)

Short half-life — flexible timing

Useful for appetite enhancement in research contexts

⚠ Potential Concerns

Pronounced appetite stimulation — may complicate body composition goals

Cortisol and prolactin elevation greater than newer GHRPs

WADA S2 prohibited

Receptor desensitization with continuous long-term use

⚠️

Research use onlyThis page is an educational reference. None of this constitutes medical advice. Consult a qualified professional before any use. All compounds are for research purposes only.

Academic References

[1]

Bowers CY, et al. (1984). On the in vitro and in vivo activity of a new synthetic hexapeptide that acts on the pituitary to specifically release GH. Endocrinology. 114(5):1537–45. PubMed ↗

[2]

Frieboes RM, et al. (1995). Growth hormone-releasing peptide-6 stimulates sleep, GH, ACTH and cortisol release in normal man. Neuroendocrinology. 61(5):584–9. PubMed ↗

[3]

Arvat E, et al. (1997). GHRP-2 and GHRP-6 exhibit similar stimulatory effects on GH, ACTH and cortisol in normal subjects. Eur J Endocrinol. 136(4):369–74. PubMed ↗

[4]

Bowers CY. (1998). Growth hormone-releasing peptide (GHRP). Cell Mol Life Sci. 54(12):1316–29. PubMed ↗

GHRP-6: the original GHRP — appetite and all.

GHRP-6
Dosage Protocol

What is GHRP-6?

Dosing Schedule

Safety & Side Effects

Academic References

GHRP-6: the original GHRP — appetite and all.

GHRP-6Dosage Protocol

What is GHRP-6?

Dosing Schedule

Safety & Side Effects

Academic References

GHRP-6
Dosage Protocol