Penta Ultimate Mass & Recomp Research Stack (MK-677 + MK-2866 + LGD-4033 + YK-11 + RAD-140) — 30 Capsules

Product Overview

What Each Compound Is Used For

1. MK-677 (Ibutamoren) — 25mg / Capsule

• Dosage per Capsule: 25 mg (30 Capsules per Bottle)
  
  
• CAS Number: 159752-10-0
  
  
• Classification: Growth Hormone Secretagogue / Ghrelin Receptor Agonist
  
  

• Elevated GH & IGF-1 Secretion: Mimics ghrelin signaling to induce sustained, pulsatile release of endogenous Growth Hormone (GH) and Insulin-like Growth Factor 1 (IGF-1).
  
  
• Accelerated Cellular Recovery: Extensively researched for enhancing deep sleep cycles, cellular repair, and systemic recovery.
  
  
• Nutrient Partitioning & Appetite Support: Drives ghrelin pathway activation for optimized calorie utilization in skeletal muscle.
  
  
• Bone Mineral Density Support: Promotes bone turnover and structural mineral density over extended research protocols.
  
  

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 Mass Preservation: Protects skeletal muscle tissue against breakdown under high metabolic strain or caloric restriction.
  
  
• Joint, Tendon & Connective Tissue Repair: Uniquely researched for supporting collagen synthesis, tendon repair, and ligament resilience under heavy load exertion.
  
  
• Body Recomposition: Optimizes lipid expenditure while protecting structural lean mass.
  
  
• Versatile Anabolic Base: Provides a steady, low-stress tissue-protective base that complements heavier androgenic signaling.
  
  

3. LGD-4033 (Ligandrol) — 10mg / Capsule

• Dosage per Capsule: 10 mg (30 Capsules per Bottle)
  
  
• CAS Number: 1165910-22-4
  
  
• Classification: Selective Androgen Receptor Modulator (SARM)
  
  

• Rapid Muscle Mass Hypertrophy: Widely documented in clinical literature for driving significant increases in total lean muscle tissue mass.
  
  
• Intracellular Glycogen Volumization: Enhances intracellular glycogen storage within muscle cells, resulting in full, dense, and voluminous muscle bellies.
  
  
• Heavy Force Production: Evaluated for boosting total workload capacity and structural load resistance in skeletal muscle models.
  
  
• Bone Mineral Support: Stimulates osteoblast activity to reinforce structural durability under heavy physical exertion.
  
  

4. 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 expression in muscle cells, neutralizing Myostatin (the protein that limits skeletal muscle growth).
  
  
• Unrestricted Cellular Expansion: Researched for enabling tissue models to surpass standard genetic ceiling limits in muscle development.
  
  
• Extreme Force Production: Significantly enhances peak force output and structural load tolerance in skeletal muscle tissue.
  
  
• Dry & Detailed Muscular Finish: Operates without estrogen conversion, promoting a dense, vascular, and hard muscle finish.
  
  

5. RAD-140 (Testolone) — 20mg / Capsule

• Dosage per Capsule: 20 mg (30 Capsules per Bottle)
  
  
• CAS Number: 1182367-47-0
  
  
• Classification: Selective Androgen Receptor Modulator (SARM)
  
  

• Explosive Power & Strength Increases: Significantly enhances peak force production, heavy lifting performance, and total workload threshold.
  
  
• Dense Muscle Mass Accumulation: Features an exceptionally high anabolic-to-androgenic ratio targeted at driving rapid, dense skeletal muscle growth.
  
  
• Hard, Dry Muscular Finish: Does not convert to estrogen via aromatization, providing structural hardness to balance volumetric glycogen fullness.
  
  
• Targeted Receptor Selectivity: Binds with high affinity to androgen receptors in skeletal muscle and bone tissue.
  
  

Why Use MK-677, MK-2866, LGD-4033, YK-11 & RAD-140 Together? (The Penta Ultimate Stack)

• Removing Genetic Growth Ceilings: While YK-11 disables myostatin restriction to allow continuous cell division, MK-677 elevates IGF-1 and GH levels to supply the signaling required for rapid tissue synthesis.
  
  
• Triple SARM & Volumetric Synergy: Unites direct androgen receptor activation across three selective modulators (RAD-140, LGD-4033, MK-2866) and YK-11 to maximize muscle tissue accumulation and intracellular glycogen fullness.
  
  
• Structural Joint Resilience & Deep Recovery: As RAD-140, LGD-4033, and YK-11 push skeletal force production to peak levels, MK-2866 reinforces tendon and ligament integrity while MK-677 accelerates systemic recovery and tissue regeneration.
  
  

What’s Included in the Box

• 1x Bottle MK-677 (Ibutamoren) — 30 Capsules (25mg per capsule) in a sealed HDPE pharmaceutical bottle.
  
  
• 1x Bottle MK-2866 (Ostarine) — 30 Capsules (25mg per capsule) in a sealed HDPE pharmaceutical bottle.
  
  
• 1x Bottle LGD-4033 (Ligandrol) — 30 Capsules (10mg per capsule) in a sealed HDPE pharmaceutical bottle.
  
  
• 1x Bottle YK-11 (Myostine) — 30 Capsules (10mg per capsule) in a sealed HDPE pharmaceutical bottle.
  
  
• 1x Bottle RAD-140 (Testolone) — 30 Capsules (20mg 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.