Research-grade compound. Laboratory use only. Not intended for human or animal use, ingestion, or injection. No medical claims are made or implied.
≥98% Purity
SARMsSKU: CP-M6
MK-677/Ibutamoren 10mg
≥98% PuritySupplier batch spec; selected lots Janoshik-tested
€154.99Out of Stock
Delivers to EU in 11-14 business days
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Research-grade MK-677/Ibutamoren. ≥98% supplier batch specification; selected lots independently tested (99.3% avg across published reports). Oral capsules in sealed bottle. For laboratory research use only. Not for human consumption.
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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
Supplier batch specification on every product; independent Janoshik report on selected lots
Last reviewed: 2026-06-10
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 -- studied in research models for sustained GH and IGF-1 elevation over 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 in research models: GH spikes and returns to baseline within hours. MK-677 is studied for continuous GHS-R stimulation, with GH elevated throughout the day and IGF-1 rising and staying elevated in model systems. Whether sustained GH elevation produces the same physiological effects as pulsatile stimulation is one of the central research questions MK-677 enables. Additional signals studied alongside GHS-R activation include appetite stimulation and increased slow-wave sleep duration. The published research data includes long-term (multi-year) body composition studies in animal models, sleep architecture measurements, and bone marker data.
Specifications
| Molecular Weight | 528.7 Da |
|---|---|
| CAS | 159752-10-0 |
| Purity | ≥98% (supplier batch spec; 99.3% avg across independently tested lots) |
| Form | Capsule |
| Sizes | 10mg (60 capsules) |
Storage: Room temperature, away from moisture and direct light.
Quality: Every product ships to a ≥98% supplier batch specification; selected lots are independently tested by Janoshik Analytical (HPLC + mass spectrometry; 99.3% average purity across published reports), searchable by batch code at certapeptides.com/verify. 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?
In research models, ipamorelin and GHRP-2 produce short GH pulses that return to baseline within 2-4 hours, while MK-677 is studied for sustained GH elevation throughout the day, with IGF-1 remaining chronically elevated in model systems. 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?
Selected lots are independently verified by Janoshik Analytical (Czech Republic) and published on the Janoshik public portal. Other lots ship with the supplier's batch specification. See /coa for the published wall.
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 54169956, VAT-registered. Sameday for Romania, TCE Worldwide for all cross-border EU and non-EU markets (UK, Switzerland, Norway, Iceland, Israel, Serbia). Delivery 1–14 business days depending on destination — exact window shown at checkout.
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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