Buy YK-11 (Myostine) Capsules Online | High-Purity Myostatin Inhibitor SARM

Introduction to Buy YK-11 (Myostine) Capsules

Buy YK-11 (Myostine) Capsules, widely recognized in the research community as Myostine, is a highly distinct and potent synthetic compound that occupies a unique space in the field of experimental endocrinology. While structurally classified as a Selective Androgen Receptor Modulator (SARM), YK-11 is fundamentally different from non-steroidal SARMs like Ostarine or Ligandrol. Structurally, it is a synthetic steroidal derivative of DHT (Dihydrotestosterone) that functions as a gene-selective agonist.

What sets YK-11 apart in musculoskeletal research is its documented ability to induce the expression of Follistatin, a potent naturally occurring antagonist of Myostatin. Myostatin is a protein that negatively regulates muscle growth. By inhibiting this pathway, YK-11 provides a dual mechanism of action: direct androgen receptor agonism and myostatin inhibition. To meet the exacting needs of modern laboratories, we supply YK-11 in precision-dosed capsules, eliminating weighing variables and ensuring absolute consistency for in-vitro assay preparation and analytical calibration. Note: This product is strictly intended for in-vitro research and analytical purposes only.

Key Features and Benefits – Buy YK-11 (Myostine) Capsules

• Dual Mechanism Research Model: YK-11 offers researchers the rare opportunity to study a compound that exerts both selective androgen receptor agonism and follistatin-mediated myostatin inhibition in skeletal muscle models.
• Absolute Dosing Precision: Each capsule contains an exactly measured dose of YK-11, eliminating the risk of micro-weighing errors and ensuring absolute consistency across your research assays.
• Streamlined Workflow: Pre-dosed capsules accelerate laboratory preparation times, allowing researchers to bypass tedious analytical weighing protocols and proceed directly to solvent dissolution.
• Enhanced Compound Stability: The encapsulated format protects the active research chemical from ambient light, moisture, and oxygen, drastically extending the chemical’s shelf life compared to bulk raw powder.

Product Specifications

• Chemical Name: (17α,20E)-17,20-[(1-Methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester
• Common Designation: YK-11 / Myostine
• CAS Number: 1370003-76-1
• Class: Steroidal SARM / Myostatin Inhibitor / Research Chemical
• Form: Precision-Dosed Capsules (Encapsulated Powder)
• Purity: ≥ 98% (Active ingredient verified by Independent Third-Party Testing)
• Appearance: Powder encapsulated in readily dissolvable capsules (color varies by batch)
• Storage Requirements: Store in a cool, dry, dark environment (room temperature or 4°C). Keep bottles tightly sealed to protect from moisture.

Applications and Usage

YK-11 (Myostine) Capsules are exclusively designated for in-vitro (outside a living organism) research and analytical applications. Common laboratory applications include:

• Myostatin/Follistatin Pathway Studies: Investigating the upregulation of Follistatin gene expression and the subsequent inhibition of the TGF-β/myostatin signaling cascade in skeletal muscle cell cultures (e.g., C2C12 myotubes).
• Androgen Receptor Binding Assays: Analyzing the unique conformational changes induced by YK-11 at the androgen receptor compared to non-steroidal SARMs and traditional anabolic steroids.
• Analytical Calibration: Utilizing the precisely dosed capsule content as a known quantitative standard for LC/MS and GC/MS spectroscopy to validate instruments and detect YK-11 metabolites in biological matrices.
• Comparative SARM Pharmacology: Contrasting the tissue selectivity and pharmacodynamic profile of steroidal SARMs versus non-steroidal analogs.

Disclaimer: This product is not for human or veterinary consumption. It must only be handled in controlled laboratory environments by qualified professionals.

Purity and Testing

We guarantee a purity level of ≥ 98% for the YK-11 utilized in our capsules. Every production batch undergoes rigorous, independent third-party testing to verify chemical identity, absolute purity, dosage accuracy, and the absence of dangerous residual solvents, heavy metals, or unreacted steroidal precursors. Certificates of Analysis (CoA) and Safety Data Sheets (SDS) are provided upon request, ensuring complete traceability and compliance for your research institution.

Safety and Handling

While the encapsulated format offers enhanced safety over loose bulk powders, YK-11 remains a potent investigational research chemical requiring strict laboratory protocols:

• Personal Protective Equipment (PPE): Always wear nitrile gloves and safety goggles when handling the capsules or extracting the compound for assay preparation.
• Extraction Safety: If opening capsules to extract the powder for volumetric dosing, do so within a certified chemical fume hood using appropriate non-sparking tools to prevent particle dispersion.
• Accidental Exposure: Avoid direct contact with the bare compound. If skin contact occurs, wash thoroughly with soap and water.
• Secure Storage: Keep capsules locked away in a secure laboratory cabinet, out of reach of unauthorized personnel.

Global Shipping and Discreet Delivery

• Global Reach: We ship YK-11 Capsules internationally, complying with all hazardous materials shipping regulations.
• Discreet Packaging: Orders are dispatched in unmarked, tamper-evident packaging. The uniform shape of capsule bottles makes them exceptionally easy to ship discreetly without attracting unwanted attention.
• Rapid Processing: Orders are processed and shipped within 24 hours of cleared payment with full end-to-end tracking.
• Damage Prevention: Capsule containers are cushioned within rigid outer boxes to prevent crushing during international transit.

Why Choose Us To Buy YK-11 (Myostine) Capsules?

• Innovative Delivery Formats: We provide research chemicals in precision-dosed, laboratory-friendly formats that prioritize accuracy, consistency, and longevity.
• Uncompromising Quality: We verify every batch in-house and via third-party labs before it reaches you.
• Total Transparency: Full analytical data provided—no fillers, no impurities, just verified, precisely dosed YK-11.
• Secure Transactions: We utilize SSL encryption and accept secure, discreet payment methods, including major cryptocurrencies (Bitcoin, Monero, Ethereum) and secure bank transfers.

Legal and Safety Compliance

YK-11 (Myostine) Capsules are sold strictly as research chemicals and are not approved by the FDA, EMA, or any equivalent regulatory body for human or veterinary use. It is an investigational compound.

It is the sole responsibility of the purchaser to ensure that the acquisition, possession, and use of YK-11 comply with all local, state, national, and international laws. Warning: YK-11 is prohibited by the World Anti-Doping Agency (WADA) and is banned in all competitive sports. Furthermore, due to its steroidal backbone, it may fall under analogue acts or stricter regulations regarding anabolic agents in various jurisdictions (including the USA and Australia). We do not ship to regions where this compound is explicitly prohibited for purchase. By purchasing from us, you affirm that you are a qualified researcher or institutional buyer over the age of 18, and you assume all legal liability for the product upon delivery.

Frequently Asked Questions (FAQ)

Q1: What makes YK-11 different from other SARMs like Ostarine or Ligandrol?
A: Unlike Ostarine and Ligandrol, which are non-steroidal SARMs, YK-11 has a steroidal (DHT-derived) backbone. More importantly, YK-11’s primary research interest lies in its unique secondary mechanism: it induces the expression of Follistatin, which actively inhibits Myostatin—the protein responsible for limiting muscle growth. This dual-action profile sets it apart from all other SARMs.

Q2: Why choose YK-11 capsules over bulk powder?
A: Bulk SARM powders, especially steroidal derivatives, are highly susceptible to moisture absorption and micro-weighing errors. Our precisely dosed capsules guarantee an exact, pre-measured reference mass, protect the compound from environmental degradation, and streamline laboratory workflow by removing the need for analytical balances during assay preparation.

Q3: Can YK-11 Capsules be consumed by humans?
A: Absolutely not. YK-11 is a potent, investigational research chemical. Early clinical data suggests it can significantly suppress endogenous testosterone and affect hepatic lipids. It is strictly for in-vitro laboratory and analytical research. Ingestion is strictly prohibited.

Q4: Do you provide a Certificate of Analysis (CoA)?
A: Yes. We provide a comprehensive CoA—including HPLC, GC/MS, and dosage verification data—for every capsule batch we sell. This guarantees the identity, purity, and exact mass of the active compound.

Q5: Is it legal to buy YK-11 in my country?
A: Legality varies drastically. While legal for legitimate research in many parts of the world, SARMs and steroidal derivatives are heavily regulated in the USA, Australia, and parts of Europe. We cannot provide legal advice. It is your responsibility to research your local laws before placing an order.

Q6: How should I store YK-11 Capsules for long-term research?
A: Store the capsules in their original, tightly sealed container in a cool, dry, dark place (room temperature is typically sufficient, or 4°C for long-term storage). Keep away from direct sunlight, heat, and moisture to prevent degradation of the capsule shell and active ingredient.