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Ibutamoren (MK-677) — an orally active, non-peptide growth-hormone secretagogue (a ghrelin-receptor mimetic) studied for sustained elevation of GH and IGF-1. Lyophilized powder, an independent COA per batch, purity ≥99%.
Size: 25 mg
No published analyses yet.
Titration schedule · reference
The information below is provided from public sources for reference only. It is not advice or instructions for use; products are intended for laboratory research only and not for human consumption.
| Period / condition | Dose | Escalation |
|---|---|---|
| Start | 10 mg orally, once daily | Starting dose |
| Main regimen | 10–20 mg orally, once daily | No higher than 20 mg |
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Ibutamoren (MK-677) is an orally active, non-peptide growth-hormone secretagogue — a small molecule that mimics ghrelin and activates its receptor (GHSR). That mechanism has made MK-677 one of the more widely studied tools for sustained, long-lasting elevation of growth hormone (GH) and IGF-1 without injections; clinical and laboratory work has looked at it in connection with lean muscle mass, sleep quality, and appetite.
Longeva supplies Ibutamoren as a research substance: a lyophilized powder with an independent certificate of analysis (COA, HPLC) per batch and a stated purity of ≥99%.
