Buy YK-11 (Myostine) Capsules – Next LVL Muscle For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
What is YK-11 (Myostine) Capsules?
YK-11, also known as Myostine, is a synthetic steroidal selective androgen receptor modulator (SARM) structurally derived from dihydrotestosterone (DHT). It is unique in combining SARM activity with myostatin inhibition, a protein that suppresses muscle growth. This dual action results in potent anabolic effects, promoting muscle cell differentiation and growth more effectively than traditional anabolic steroids like DHT in vitro. Due to its steroidal backbone and partial agonist properties on androgen receptors, YK-11 can stimulate significant muscle hypertrophy while minimizing androgenic effects on non-muscle tissues, based on limited preclinical evidence. Next LVL Muscle supplies YK-11 in capsule form for controlled laboratory research. This product is not approved for human or veterinary use.
Technical Information of YK-11 (Myostine) Capsules
| Property | Details |
|---|---|
| CAS No | 1370003-76-1 |
| Alternate Names | YK-11; Myostine; (17Îą,20E)-17,20-[(1-methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester |
| Chemical Formula | C27H34O6 |
| Molecular Weight | 454.55 g/mol |
| Form | Capsules (dosage depends on supplier; commonly 5 mg or 10 mg) |
| Purity | âĨ98% (verified by HPLC) |
| Melting Point | Data limited; steroidal melting behavior |
| Storage Conditions | Store in a cool, dry place, protected from light and moisture |
Typical Research Applications of YK-11 (Myostine) Capsules
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Enhancement of muscle cell differentiation and myoblast growth
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Myostatin inhibition and muscle hypertrophy research
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Studies on selective androgen receptor modulation with partial agonist effects
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Investigation of anabolic effects with reduced androgenic side effects
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Preclinical evaluation of muscle wasting and sarcopenia treatment
Safety and Handling Information for YK-11 (Myostine) Capsules
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Use appropriate PPE including gloves, lab coat, and eye protection during handling
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Handle in chemical fume hood or well-ventilated area to avoid exposure
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Avoid ingestion, skin contact, or eye exposure; wash immediately if contact occurs
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Store capsules sealed in airtight containers, away from light, moisture, and heat
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Dispose of all residues as per hazardous chemical protocols
Ordering and Shipping Summary for YK-11 (Myostine) Capsules
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Available through licensed research chemical distributors
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Packaged as capsules for accurate and consistent research dosing
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Shipping adheres to regulatory standards for controlled chemical substances
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Purchase limited to accredited research institutions and qualified laboratories
Storage Conditions for YK-11 (Myostine) Capsules
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Store in airtight containers at controlled room temperature or cooler
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Protect from humidity, sunlight, and heat to maintain compound stability
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Follow supplier-specific storage recommendations when available
Alternatives to YK-11 (Myostine) Capsules
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Other steroidal SARMs such as RAD-140 or LGD-4033 for comparative research
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Experimental myostatin inhibitors in preclinical development
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Traditional anabolic steroids for reference research (restricted use)
FAQ About YK-11 (Myostine) Capsules
Q:Â Is YK-11 approved for human use?
A:Â No. It is an experimental compound strictly for research purposes only.
Q:Â What purity level can be expected?
A:Â Purity is guaranteed at âĨ98%, validated by HPLC or equivalent methods.
Q:Â How does YK-11 differ from typical SARMs?
A:Â YK-11 acts as both a SARM and a myostatin inhibitor, providing potent anabolic effects alongside muscle growth regulation.
Q:Â What typical dosages are provided in capsules?
A:Â Common dosing is 5 mg or 10 mg capsules, depending on supplier formulation.
Call to Action
Enhance your research capabilities with high-quality YK-11 (Myostine) Capsules from Next LVL Muscle. Order through trusted suppliers, ensuring compliance with all safety and regulatory guidelines for research chemicals.

Esteban Navarro (verified owner) –
I love how easy it is to order from this site.
Christian Braun (verified owner) –
Superb products, always delivered on time.
Daniel Roberts (verified owner) –
This product has provided excellent results in our research projects, demonstrating reliable and accurate performance.
Steven Young (verified owner) –
Great product quality and fast delivery. Will order again.
Oscar Vega (verified owner) –
The compoundâs reproducibility and consistency in our assays made it a standout choice for research.
Carlos Mendoza (verified owner) –
The purity was critical for the success of our experiment, and this product delivered on all fronts.
Amanda Edwards (verified owner) –
The productâs consistency and high quality ensured reproducible results in our ongoing research studies.