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Peptide Division

GROWTH HORMONE AXIS / COLOPHON

About This Sorting Table

A citation-anchored sorting table for the GH-axis research peptide literature. No vendor. No clinic. Certainly no dose guide.

What Peptide Division is

Peptide Division reads the published research on three peptides that share one mechanism territory — the growth hormone axis — and sorts them apart. The three — ipamorelin, CJC-1295, and sermorelin — all prompt the anterior pituitary to release growth hormone, but by different receptors, over different durations, with very different evidence histories. The site sets out to keep those distinctions readable and honest, rather than flatten them into a single "GH peptide" category the way most popular sources do.

The organizing frame is the GHRP-versus-GHRH contrast. Ipamorelin activates the ghrelin/GHS receptor (GHRP mechanism); CJC-1295 and sermorelin activate the GHRH receptor directly. That mechanistic distinction matters for how the compounds behave, how they are sometimes combined, and why the evidence base for each looks different. Each compound has its own page; a comparison page lines them up; a single shared references list aggregates every cited source across all three.

How it is compiled

Three rules shape what gets sorted onto the table.

Peer-reviewed anchoring. Each research claim carries a numbered citation — PubMed-indexed journal articles, published reviews, and regulatory documents — collected on the references page. A finding drawn from a review rather than a primary study is marked as such.

Evidence reported at its actual strength. Doses are given in the species and route in which they were studied — for example, "studied at 30 micrograms per kilogram subcutaneously in healthy adult volunteers" — never scaled or converted into a recommendation. Where evidence is animal-only, short-term, from a single group, or rests on a related but distinct compound, the page says so. The absence of efficacy evidence for a given use case is stated plainly, not softened into a "more research is needed" hedge.

Cross-referencing between mechanisms. Because the compounds share downstream targets and are sometimes discussed as a combination, the pages link to one another so a reader can follow a mechanistic question — the GH pulse, IGF-1 feedback, pulsatility preservation — across all three.

What it is not

Peptide Division is no store, no clinic, and no source of medical advice. It sells, supplies, sources, and brokers no research peptide or chemical, and holds no affiliate or referral tie to any vendor. It keeps no clinicians, diagnoses no condition, and prescribes nothing.

It hands out no dose, schedule, or route of administration for anyone. The doses on these pages are study parameters — the amounts used in specific published protocols in specific populations — recorded because they document what was actually studied, not because they are recommendations to replicate.

The peptides here are research compounds. None is currently approved for general adult use; several hold nuanced or contested regulatory positions the site works to describe accurately rather than simplify. Anyone with health questions should consult a licensed clinician in their jurisdiction. What this site offers is a careful, accurate reading of the published literature — nothing more, and nothing it claims to be.