Ghrelin
Price and cost-per-mg comparison
Ghrelin is an endogenous 28-amino-acid peptide hormone produced primarily by X/A-like cells of the gastric fundus, characterized by a unique octanoyl modification at Ser3 required for GHS-R1a receptor binding; it is the endogenous ligand for the growth hormone secretagogue receptor and functions as a dual regulator of GH secretion and energy homeostasis. Ghrelin acts centrally via hypothalamic GHS-R1a receptors to potently stimulate GH release from the pituitary and to promote appetite through NPY/AgRP pathway activation, and has peripheral effects on gastric motility and insulin secretion, establishing it as a key integrator of nutritional status, GH axis activity, and energy balance. The pharmacology of GHS-R1a activation in humans is validated through macimorelin (Macrilen), an FDA-approved oral ghrelin receptor agonist; Phase 1 and Phase 2 randomized controlled trials of macimorelin demonstrated robust and reliable GH stimulation in adults, supporting FDA approval in 2017 for the diagnosis of adult GH deficiency and confirming the human physiological relevance of ghrelin receptor activation. Ghrelin itself is not therapeutically administered; it has a very short plasma half-life and the active acylated form is rapidly degraded in circulation; FDA-approved ghrelin receptor agonists require prescription and are indicated for diagnostic rather than therapeutic use, while ghrelin peptide is used exclusively as a research tool compound in neuroendocrine pharmacology studies.
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| Vendor | Size | Price | Cost per mg▲ | COA | Source | Availability | Actions |
|---|---|---|---|---|---|---|---|
Other sizessingle vials, one listing each1 listing | |||||||
US Ghrelin Acetate | 2 mg vial | $80.26 | $40.13 | — | Vendor feed · 2 wk ago | In stock | View ↗ |
— in COA: no certificate on file for this vendor— in availability: stock not read at the last checkPrices as scraped; foreign prices converted to USD
When Ghrelin prices moved
0 days in the last 120 on which a feed run read comparable Ghrelin prices from 3 or more vendors. Each point is the median $/mg across every comparable listing read that day, sized by how many vendors were read. A log of run days, not a continuous series.
How these prices are computed
The short version. The methodology page has the rest.
Source
Prices are read from each vendor's own store feed or product markup (Vendor feed). Every row says which source it came from and when it was read. Prices parsed from page text are not in this index.
$/mg
Listed price ÷ stated milligrams, converted to USD. Packs are priced on total milligrams. Listings sold per kit, per ml, as capsules or sprays, as blends, or without a stated mass are shown but not ranked.
Population
Active online research vendors only. Clinic, pharmacy and telehealth prices are excluded. Medians and the p25–p75 band are computed over comparable listings, one row per vendor product and size.
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Educational research tools — not medical advice.