Dragon Pharma YK 11 10mg Myostatin Inhibitor Tablets

YK-11 by Dragon Pharma is widely regarded as the most powerful myostatin-inhibiting SARM currently available. Each tablet contains 10 mg of pure YK11 — a synthetic steroidal compound that acts as both a potent androgen receptor agonist and a true myostatin inhibitor via follistatin upregulation. This dual mechanism allows users to break through natural genetic muscle-building barriers, delivering rapid, dramatic gains in size, strength, and hardness that far exceed traditional SARMs.

What It Is

YK-11 (also known as Myostine) is a second-generation SARM chemically derived from dihydrotestosterone (DHT). Unlike conventional SARMs, YK11 not only binds to androgen receptors in muscle and bone but also dramatically suppresses myostatin — the primary protein that limits muscle growth. By increasing follistatin expression, YK11 effectively removes the body's natural "muscle brake," enabling unprecedented hypertrophy.

How It Works

YK11 functions through two synergistic pathways: (1) selective activation of androgen receptors in skeletal muscle, triggering anabolic signaling and protein synthesis, and (2) inhibition of myostatin by inducing follistatin, which neutralizes myostatin and allows muscle fibers to grow beyond genetic limits. Studies and user data show YK11 produces significantly greater myonuclear addition than any other SARM.

YK-11 Benefits

• Extreme Muscle Growth: 10–15+ lbs of lean mass in a single 6–8 week cycle
• Rapid Strength Gains: Dramatic increases in compound lift numbers
• Enhanced Muscle Hardness & Fullness: Dry, dense, grainy look
• Improved Bone Density: Beneficial androgenic effects on skeletal health
• Fat Loss Support: Recomposition effects even in caloric surplus

Who It's For

YK-11 is intended for advanced male users (21+) who have already completed multiple SARM or prohormone cycles. It is not suitable for beginners, women, or anyone with pre-existing liver, heart, or hormonal conditions. Due to its potency and suppressive nature, blood work before, during, and after the cycle is mandatory.

How to Use

Dosage: 10–20 mg per day (1–2 tablets), split into two doses (morning/evening) due to ~6–8 hour half-life.
Cycle Length: 6–8 weeks maximum (do not exceed 8 weeks).
Administration: Oral tablets. Take with or without food.
First-time users: Begin with 10 mg/day for the first 7–10 days to assess tolerance.

Stacking Suggestions

• Mass Monster Stack: YK-11 + RAD-140 + LGD-4033
• Recomp Stack: YK-11 + MK-2866 (Ostarine) + GW-501516 (Cardarine)
• Advanced Hybrid Stack: YK-11 + low-dose Testosterone base (100–200 mg/week)

Side Effects

• Temporary natural testosterone suppression (PCT required)
• Joint/tendon dryness or discomfort
• Mild to moderate liver stress (use TUDCA/NAC)
• Increased aggression and possible hair shedding in predisposed individuals
• Rapid strength gains may outpace tendon adaptation → injury risk

Regular blood work (liver enzymes, lipids, testosterone) is essential.

Post Cycle Therapy (PCT)

YK-11 is significantly suppressive. Full PCT is mandatory.
Standard protocol: Clomid 50/50/25/25 mg or Nolvadex 40/40/20/20 mg for 4–6 weeks.
Add a natural testosterone booster and liver support for optimal recovery.