MK-677
Ibutamoren mesylate — an orally active ghrelin receptor agonist studied for GH pulse amplification, lean muscle accretion, and sleep-architecture support.
Subscribe & save — €79 on recurring 60-day delivery. Configured at checkout.
- Availability
- Ships within 1 business day
- Storage
- Room temperature. Dry, cool environment.
- Ships from
- European fulfilment centre, standard tracked
Lab proof, by batch
- Tested independently, by batch
- Certificate of analysis available
- Purity and identity on record
GH secretagogue support.
MK-677 (CAS 159752-10-0) is an orally active ghrelin mimetic binding the GH secretagogue receptor. Research has examined its effects on IGF-1 levels, lean muscle mass, bone density, and REM sleep quality. Formula C27H36N4O5S, MW 528.67 g/mol. Not a peptide by structure; functions within GH support pathways.
- — Nass et al. — Ibutamoren effects on growth hormone secretion and IGF-1 in healthy older adults
- — Svensson et al. — oral ghrelin mimetic and body composition markers
Research context only. Not medical advice. Consult a qualified clinician before use.
- 5–10 mg per serving
- Oral administration — no reconstitution required
- Store at room temperature in a dry, cool environment
- Keep away from direct sunlight and humidity
- MK-677 measured powder serving in batch-coded packaging
- Lot reference with certificate of analysis insert
Simple, deliberate steps — not a protocol.
These are practical handling notes. Dosing decisions stay between you and your clinician.
- 1
Oral administration at the agreed dose — typically once daily, consistency supports stable GH pulsatility
- 2
Take with or without food; confirm protocol and dose range with your clinician
- 3
Do not exceed the agreed dose; titrate upward only under clinical guidance
Every batch is analysed by an independent ISO/IEC 17025-accredited laboratory. Identity, purity, and mass-spec results are published on the product page before you buy.
Every batch is verified by an ISO/IEC 17025-accredited laboratory before release. Identity, purity, and documentation travel with the product — not behind a form.
Sensitive peptides ship in insulated cold-chain packaging with gel packs sized for a 48-hour transit window, tracked door to door.
Everything worth asking before you order.
Shipping, storage, quality, and when to speak to a clinician — without the runaround.
What proof of quality comes with my order?
Every batch ships with a batch code printed on the vial. The matching third-party certificate of analysis — identity, HPLC purity, and mass-spec results — is linked on the product page and also available from your order page after purchase.
How much scientific detail is on each product page?
Each page opens with a plain-language purpose line and the testing behind it, then expands into research notes, dosing specifications, and linked peer-reviewed studies for readers who want more depth. You decide how deep you go.
When will my order ship and arrive?
Orders placed before 14:00 CET Monday–Friday ship the same business day from our European fulfilment centre in The Hague, Netherlands. Standard tracked EU delivery arrives in 2–4 business days; express options are available at checkout.