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GHRP-6

Growth Hormone Releasing Peptide-6

Early GH secretagogue notable for strong appetite stimulation via ghrelin pathway. Studied for cachexia and muscle wasting. Also has gastroprotective properties similar to BPC-157.

Evidence

Limited human data

Routes

injectable

Available since

Developed 1980s. Research use through 1990s and 2000s before more selective peptides became available.

Mechanism of action

GHS-R1a agonist with even stronger appetite stimulation than GHRP-2 via ghrelin pathway activation. Also studied for gastroprotective effects through mechanisms similar to BPC-157. Stimulates GH release with concurrent cortisol and prolactin elevation.

Effects in the body

GHRP-6 appetite stimulating side effect became a feature in cachexia and muscle wasting research. The gastroprotective properties make it interesting alongside BPC-157 for GI research applications. Long research history with well characterized pharmacology.

Pros & cons (from the literature)

Pros

Strong GH release
Appetite stimulation useful in cachexia and muscle wasting research
Gastroprotective properties studied
Long research history with well characterized pharmacology

Cautions

Strong hunger and appetite stimulation as a side effect
Cortisol and prolactin elevation
RUO status — not compoundable in USA
Water retention common
Largely replaced by Ipamorelin in clinical settings

Protocol summary (from published research)

Research protocols 100-200 mcg subcutaneous 1-3 times daily. Typically taken before meals to utilize the appetite stimulation effect. Short cycles recommended.

Dosing ranges reproduced from published research literature. Not a prescription, not medical advice.

FDA & regulatory status

Research Use Only. Not approved or compoundable in USA. Primarily of historical and research interest — largely replaced clinically by more selective secretagogues.

Evidence base

Well studied pharmacologically with extensive preclinical data. Limited modern clinical trials. Historical significance as foundational GH secretagogue research compound.

Primary research sources

Peer-reviewed literature referenced throughout this profile is drawn from PubMed, Cell Metabolism, and clinical trial registries cited in the evidence base above.

Important. ThePeptide.expert summarizes published research. We are not a pharmacy, do not prescribe, and make no therapeutic claims. Regulatory status varies by jurisdiction.