Dual Compound Research Stack (MK-2866 + YK-11) — 30 Capsules

Product Overview

What Each Compound Is Used For

1. YK-11 (Myostine) — 10mg / Capsule

• Dosage per Capsule: 10 mg (30 Capsules per Bottle)
  
  
• CAS Number: 1370003-76-1
  
  
• Classification: Steroidal SARM / Myostatin Inhibitor
  
  

• Myostatin Inhibition via Follistatin: Induces Follistatin production in skeletal muscle, disabling myostatin to allow growth beyond natural genetic ceilings.
  
  
• Extreme Muscle Hypertrophy: Widely documented in research literature for driving rapid, dense, and hard muscle tissue growth.
  
  
• Aggressive Power & Strength Output: Significantly boosts force production and structural load capacity in skeletal muscle models.
  
  
• Dry, Vascular Finish: Promotes tight, hard muscle bellies without causing fluid retention or estrogenic bloating.
  
  

2. MK-2866 (Ostarine) — 25mg / Capsule

• Dosage per Capsule: 25 mg (30 Capsules per Bottle)
  
  
• CAS Number: 841205-47-8
  
  
• Classification: Selective Androgen Receptor Modulator (SARM)
  
  

• Lean Muscle Preservation: Protects skeletal muscle tissue against breakdown during caloric deficits or heavy metabolic strain.
  
  
• Joint, Tendon & Connective Tissue Support: Uniquely researched for its capacity to improve collagen synthesis and accelerate tendon/ligament healing.
  
  
• Fat Loss & Body Recomposition: Optimizes lipid utilization, allowing researchers to observe fat loss while maintaining full muscle mass.
  
  
• Versatile Anabolic Foundation: Delivers steady, high-efficiency tissue retention with low systemic strain.
  
  

Why Use YK-11 & MK-2866 Together? (The Dual Compound Stack)

• Myostatin Suppression + Joint Protection: While YK-11 removes genetic growth barriers to drive high muscle density and power, MK-2866 protects joints, tendons, and connective tissue under increased physical load.
  
  
• Hard Lean Gains + Tissue Preservation: YK-11 delivers dense, hard muscle gains while MK-2866 preserves muscle tissue and supports fat loss during recomposition trials.
  
  
• Multi-Pathway Efficiency: Combines steroidal-SARM myostatin modulation with non-steroidal tissue preservation for a complete, balanced research profile.
  
  

What’s Included in the Box

• 1x Bottle YK-11 (Myostine) — 30 Capsules (10mg per capsule) in a sealed HDPE pharmaceutical bottle.
  
  
• 1x Bottle MK-2866 (Ostarine) — 30 Capsules (25mg per capsule) in a sealed HDPE pharmaceutical bottle.
  
  
• Batch-Specific Certificate of Analysis (COA): Access to independent HPLC test results verifying 99%+ compound purity.
  
  
• Tamper-Evident Safety Seals & Moisture Control: Heat-sealed bottle neck bands and internal desiccant packs to maintain chemical stability.
  
  

Quality Assurance & Standards

• Precise Capsule Dosing: Eliminates measuring errors and liquid handling hassle with uniform, exact milligram dosing per capsule.
  
  
• Third-Party HPLC Verified: Active raw ingredients undergo High-Performance Liquid Chromatography (HPLC) testing prior to encapsulation.
  
  
• Pharmaceutical Binders: Formulated with inert, non-reactive fillers to ensure optimal bio-availability and long-term shelf stability.