

Classification: Myostatin Inhibitor / Partial AR Agonist
Active substance: YK-11
Manufacturer: Dragon Pharma
Form/Strength: Tablet, 10 mg
Pack size: 100 tablets
Route: Oral
Lab Test: View Result
WARNING: YK-11 is an extremely potent and advanced compound with a unique dual mechanism of action. It is intended ONLY for experienced users who understand its significant suppressive nature and require a rigorous Post-Cycle Therapy (PCT) protocol.
For elite bodybuilders seeking to break through genetic plateaus and achieve unprecedented muscle growth, YK-11 represents a cutting-edge approach. Unlike traditional SARMs, YK-11 functions primarily as a myostatin inhibitor, unlocking the potential for dramatic increases in muscle mass by blocking the protein that limits muscle growth. Sourcing a genuine and accurately dosed product is critical for both safety and realizing its full potential. This batch from Dragon Pharma is independently lab-tested to confirm a potency of 9.29 mg per tablet, ensuring you receive a reliable and powerful product when you buy YK 11 online.
YK-11's effects are profound due to its unique dual action. Firstly, it inhibits myostatin, a protein that acts as a "brake" on muscle cell growth. By blocking myostatin, it allows for accelerated muscle protein synthesis and hyperplasia (the creation of new muscle cells). Secondly, it acts as a partial agonist of the androgen receptor, further promoting anabolic activity. Users report rapid and significant gains in lean muscle mass, increased muscle density and fullness, and notable strength increases. According to a scientific review on PubMed, myostatin inhibition is a well-researched pathway for increasing muscle mass, and compounds like YK-11 that target this mechanism hold significant potential for promoting muscle growth.
Due to its extreme potency and novelty, dosing must be approached with extreme caution. YK-11 has a short half-life (approximately 6-12 hours), requiring split dosing. A common effective dosage for experienced users ranges from 10 mg to 20 mg per day. It is imperative to start at the lowest possible dose (5 mg twice daily) for the first week to assess tolerance. The dose can be carefully increased to 10 mg twice daily (20 mg total). Cycle length should be strictly limited to 6-8 weeks due to its strong suppressive nature. It is often used as a "finisher" in the latter part of a bulking cycle.
YK-11 is highly suppressive and is almost always run with a testosterone base. It is best used in a stack to synergize with other mass-building compounds.
Sample Advanced Mass Building Stack (8 weeks):
Sample Potency Stack (6 weeks):
The precision of this product is paramount for managing such a powerful and advanced cycle.
YK-11's side effect profile is significant and is dominated by its suppressive nature and potent mechanism.
Managing these risks requires a short cycle length, a testosterone base, comprehensive on-cycle support, and a powerful PCT protocol.
Given its potency and novelty, the market is rife with underdosed and fake YK-11 products. An underdosed product will yield zero results after causing significant suppression, making it a total waste and a health risk. The recent independent lab verification of this specific batch confirms its authenticity and accurate dosing. This reliability is the cornerstone of a successful and safe cycle, ensuring you are actually administering a real myostatin inhibitor. This is the defining feature of Dragon Pharma YK 11 authentic pills and provides the confidence needed to run this advanced compound.
Date: 2025-04-18
Result: 9.29 mg/tab
YK-11 is often grouped with SARMs but is mechanistically different. While it does bind to the androgen receptor like a SARM, its primary and most notable action is as a myostatin inhibitor. It works by blocking myostatin, a protein that limits muscle growth. This unique dual action (androgen receptor agonist + myostatin inhibitor) is what makes it so potent and distinct from other compounds like Ostarine or Ligandrol.
Yes, it is highly recommended and considered essential by experienced users. YK-11 is extremely suppressive and will shut down your natural testosterone production almost completely. Without an external testosterone base, you will likely experience severe low testosterone symptoms like no energy, low libido, erectile dysfunction, and depression. Running a compound like Testosterone Enanthate or Cypionate ensures your body has the necessary hormones to function and make gains.
Due to severe suppression, a robust Post-Cycle Therapy (PCT) is mandatory. Begin PCT 2-3 days after your last YK-11 dose. A strong and effective protocol includes:
- Clomid: 50 mg/day for 4-6 weeks
- Nolvadex: 40 mg/day for 2 weeks, then 20 mg/day for 2-4 weeks
Always have your PCT drugs on hand before starting your cycle. Using HCG at the end of the cycle before PCT can also be beneficial to kickstart natural production.
Yes, there is a significant risk of hair loss with YK-11. Because it acts as an androgen receptor agonist, it can accelerate male pattern baldness (MPB) in individuals who are genetically predisposed to it. The risk is higher than with many other SARMs due to its potency. If you are concerned about hair loss, it is advisable to use preventative treatments like Ketoconazole shampoo (Nizoral), Finasteride, or Minoxidil, though Finasteride may not be effective as YK-11 is not converted via the 5-alpha reductase pathway.
YK-11 is one of the only orally active myostatin inhibitors available on the market. Other research compounds like Follistatin or ACE-031 require injection. YK-11's oral bioavailability and dual mechanism (myostatin inhibition + AR activation) make it unique. It is considered more potent and suppressive than other common SARMs but may offer unparalleled results for muscle growth that other compounds cannot match due to its ability to promote hyperplasia (new muscle cells).
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Manufacturer: Dragon Pharma
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Pack size: 100 tablets
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Lab Test: View Result
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Lab Test: View Result
Classification: Myostatin Inhibitor / Partial AR Agonist
Active substance: YK-11
Manufacturer: Dragon Pharma
Form/Strength: Tablet, 10 mg
Pack size: 100 tablets
Route: Oral
Lab Test: View Result