# Ipamorelin Dosage in the Research: Doses, Routes, and Half-Life

> Ipamorelin dosage as it appears in the literature: the doses and routes studied in humans and animals, the ~2-hour half-life, and reconstitution notes. Research context only.

Every figure here is a study parameter reported in third person. Nothing on this page is a recommendation.

## Start here

A clear note before any number appears: this page reports the doses and routes that *researchers* used in *studies* — in people and in animals. It is a record of the literature, not a how-to. There is no approved ipamorelin dose anywhere in the world, no human protocol with controlled-trial support, and nothing here tells anyone what to take. The community "stack" regimens that pair ipamorelin with CJC-1295 have no peer-reviewed human dosing basis and are described as anecdotal where they come up. What the studies do tell us is concrete and worth knowing: ipamorelin clears fast (a roughly 2-hour half-life in people), produces a single growth-hormone pulse about 40 minutes after dosing [2], and has been given by several routes across species. Those facts follow, attributed to the studies that measured them.

## Doses recorded in the human studies

Two human datasets define the entire controlled record. The pharmacokinetic study used single intravenous infusions of 4.21, 14.02, 42.13, 84.27, and 140.45 nmol/kg over 15 minutes in healthy male volunteers, eight per dose level [2]. The Phase 2 ileus trial used 0.03 mg/kg intravenously twice daily for up to 7 days in 114 bowel-resection patients [3]. Both were intravenous and clinic-administered. Neither establishes a dose for any wellness use — the PK study only characterized kinetics, and the Phase 2 trial missed its endpoint [3]. There is no human subcutaneous dosing study at all, despite subcutaneous injection being the dominant route in off-label use.

## Doses recorded in the animal studies

The animal record spans a wider dose and route range. The rat bone-growth study used 18, 90, and 450 micrograms per day subcutaneously, divided three times daily for 15 days [4]. A separate rat bone-mineral study used 0.5 mg/kg per day by continuous subcutaneous osmotic minipump over 12 weeks. Rat postoperative-ileus work used 0.1–1 mg/kg intravenously, repeated four times daily. The 2024 ferret cachexia study used 1–3 mg/kg intraperitoneally [5]. The ipamorelin-derived oral analog NN703 was dosed at 100 micromol/kg/day orally for 14 days in rats [11]. These are model parameters — chosen to probe a mechanism in a species, not to map onto human use.

## Half-life and routes studied

In healthy human volunteers, ipamorelin showed a terminal half-life of approximately 2 hours by the intravenous route, with clearance of 0.078 L/h/kg and a steady-state volume of distribution of 0.22 L/kg; the GH response was a single discrete pulse peaking near 40 minutes [2]. In rats, plasma clearance runs roughly five-fold lower than GHRP-6. Routes that appear in the literature include intravenous (human PK and clinical trials; rodent efficacy), subcutaneous (rodent bone and body-composition work, and the dominant community route), intranasal (rodent PK, around 20% bioavailability), and intraperitoneal (rodent and ferret efficacy). Ipamorelin itself is not orally bioavailable — only engineered analogs such as NN703 achieve meaningful oral absorption (around 10–30% in dogs) [11].

## How much cjc-1295 ipamorelin should i take

No published human study establishes a dose for the CJC-1295 plus ipamorelin combination, so there is no evidence-based answer to this question and this page does not provide one [3]. The popular subcutaneous "stack" regimens circulating in community forums have no controlled human dosing basis and rest on each peptide's separate pharmacology, not on any trial of the pair [7]. What the literature does establish — the human ipamorelin doses studied — is that the controlled record consists only of intravenous, clinic-administered protocols [2][3], none of which were designed as wellness dosing. Anyone encountering a specific milligram figure online should recognize it as anecdotal, not a researched dose.

## How to reconstitute cjc-1295 ipamorelin 5mg

As a general matter of peptide handling in the research-supply literature, ipamorelin is supplied as a lyophilized (freeze-dried) powder — free base or acetate salt — and reconstituted with bacteriostatic water for research handling, after which the solution is typically kept refrigerated because peptides degrade with heat and repeated freeze-thaw. Those are general handling observations, not a clinical preparation instruction, and no specific reconstitution volume or concentration is endorsed here. There is no published human protocol for a CJC-1295 plus ipamorelin preparation [3]; the combination's handling, like its dosing, exists only in unregulated community practice rather than in the peer-reviewed literature.

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A forward-looking read of the ipamorelin literature, led by the one trait the molecule does cleanly — a selective GH pulse with the cortisol and prolactin left out — and honest about where the human evidence still runs thin; a reading instrument, not a clinic, a prescription, or a store.