Research-grade compound. Laboratory use only. Not intended for human or animal use, ingestion, or injection. No medical claims are made or implied.
≥98% PurityIn-House HPLC & MS Tested
SARMsSKU: CP-M6
MK-677/Ibutamoren 10mg
≥99% PurityHPLC & MS verified
€128.99Out of Stock
Delivers to EU in 7-10 business days
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Research-grade MK-677/Ibutamoren. 99.3% avg purity, HPLC & MS verified. Oral tablets in sealed bottle. For laboratory research use only. Not for human consumption.
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MADE TO ORDER — Expected delivery: ~3 weeks
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Important Notice
This product is intended for laboratory and research use only. Not for human or veterinary use. By purchasing, you confirm this product will be used exclusively for in-vitro research purposes.
When This Product May Not Suit Your Research
- ⚠If your research requires GMP-grade material for clinical applications — research-grade peptides are not intended for clinical use.
- ⚠If your lab lacks proper cold storage (-20°C freezer) — this peptide's stability may be compromised at higher temperatures.
- ⚠If your study protocol requires FDA-approved reference standards — contact USP or a certified reference material provider.
Purity HPLC
99.3% average HPLC purity, verified by independent third-party testing
Third-Party Tested
Janoshik report published when available
Fast Shipping
24h dispatch, EU-wide shipping from €4.99
Third-Party Tested
Independent lab verification for every batch
Last reviewed: 2026-04-05
About MK-677/Ibutamoren 10mg
MK-677 (Ibutamoren) is commonly grouped with SARMs, but it is not one. It does not interact with the androgen receptor. It is an oral, non-peptide GHS-R1a agonist -- a ghrelin receptor agonist in pill form -- that produces sustained GH and IGF-1 elevation for approximately 24 hours from a single daily dose. CAS: 159752-10-0. MW 528.7 Da. Merck developed it. The mechanism is identical to injectable GH secretagogues like ipamorelin -- GHS-R1a activation on pituitary somatotrophs -- but as a small molecule with oral bioavailability practical for once-daily dosing.
Sustained vs. Pulsatile GH
Injectable GH secretagogues produce acute pulses: GH spikes and returns to baseline within hours. MK-677 produces continuous GHS-R stimulation, elevating GH throughout the day. IGF-1 rises and stays elevated. Whether sustained GH elevation produces the same physiological effects as pulsatile stimulation is one of the central research questions MK-677 enables. Additional signals accompany GHS-R activation: appetite stimulation and increased slow-wave sleep duration. The published clinical data includes 2-year body composition studies in elderly subjects, sleep architecture measurements, and bone marker data.
Specifications
| Molecular Weight | 528.7 Da |
|---|---|
| CAS | 159752-10-0 |
| Purity | 99.3% avg by HPLC |
| Form | Capsule |
| Sizes | 10mg (60 capsules) |
Storage: Room temperature, away from moisture and direct light.
Quality: HPLC purity analysis, mass spec identity confirmation, endotoxin testing on every batch. COA ships with every order. EU-based QC under CERTALAB S.R.L.
Frequently Asked Questions
Is MK-677 a SARM?
No. MK-677 is a GHS-R1a agonist -- a ghrelin receptor agonist. It has no androgen receptor activity. It stimulates GH release through the same receptor system as ghrelin and ipamorelin, but as an oral small molecule rather than an injectable peptide. It is grouped with SARMs informally in many contexts, but that classification is pharmacologically incorrect.
How does MK-677 GH profile differ from injectable secretagogues?
Ipamorelin and GHRP-2 produce short GH pulses that return to baseline within 2-4 hours. MK-677 produces sustained GH elevation throughout the day, with IGF-1 remaining chronically elevated. For pulsatile GH dynamics research, injectable secretagogues are appropriate. For consequences of sustained GH elevation over days to weeks, MK-677 is the right tool.
For research purposes only. Not for human consumption.
Specification Summary
Purity99.3% avg
FormLyophilized Powder
Storage-20\u00B0C
Researcher Confidence
Why researchers choose CertaPeptides
Who actually tests this?
Every batch is independently verified by Janoshik Analytical (100,000+ verifications/month), Eurofins Scientific, and Analytical Sciences International. We publish every Certificate of Analysis.
View COAs →What if I get the wrong batch?
Every bottle label carries a lot number that maps to a specific Certificate of Analysis. If a batch fails spec, we don't ship it — full stop.
View COAs →Where does it ship from?
Romania (EU). We are CERTALAB SRL, CUI RO54451735, VAT-registered. SameDay for Romania, FanCourier for Central/Eastern EU, TCE Worldwide for the rest. 3–7 business days EU-wide.
Shipping details →What if there's a problem?
You have a 14-day withdrawal right under OUG 34/2014 (Romanian/EU consumer law), with ANPC/ODR escalation available. Contact us at support@certapeptides.com.
Returns policy →Product Information
This product is intended for scientific research and development purposes only. It is a chemical substance that shall not be used as a drug, medicine, active substance, or ingredient in any product intended for human or animal consumption. Researchers must handle this compound in accordance with their institutional biosafety guidelines. Use only in properly equipped laboratory settings with appropriate personal protective equipment.
Frequently Asked
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