Ultimate Mass Stack – MK-677, LGD-4033, RAD-140 & YK-11 – Muscle Growth & Strength Research

Ultimate Mass Stack – Lab-Grade Combination of MK-677, LGD-4033, RAD-140 & YK-11 for Maximum Muscle Growth and Performance Research

The Ultimate Mass Stack is designed for researchers seeking a potent combination for lean muscle hypertrophy, strength, and recovery. Each capsule contains:

• 25mg Ibutamoren (MK-677)
• 25mg Ligandrol (LGD-4033)
• 25mg RAD-140 (Testolone)
• 25mg Myostine (YK-11)

Researchers use this stack to investigate:

• Muscle Growth & Hypertrophy: RAD-140, LGD-4033, and YK-11 support studies into lean mass gains and anabolic activity.
• Strength & Performance: LGD-4033 and RAD-140 help explore strength improvements and power output.
• Recovery & Growth Hormone Support: MK-677 may aid recovery and stimulate growth hormone for enhanced lean mass research.
• Body Composition & Lean Muscle Preservation: YK-11 and RAD-140 help maintain muscle while studying hypertrophy and body composition.

This stack can be enhanced with additional SARMs such as Ostarine (MK-2866), Cardarine (GW501516), or Stenabolic (SR9009) for even greater muscle-building and performance research outcomes.

For further research options, see our Muscle Build Collection and Buy SARMs Collection.

Key Research Benefits

• High-Potency Muscle Growth Research: Combines four powerful compounds for advanced lean mass and strength studies.
• Strength & Performance: Supports research into improved power, stamina, and hypertrophy.
• Recovery Support: MK-677 may aid in repair and growth hormone-related research.
• Lean Muscle Preservation: YK-11 and RAD-140 help maintain muscle during research protocols.
• Stack Expansion: Compatible with Ostarine, Cardarine, or Stenabolic for extended research possibilities.

Ingredients

• Ibutamoren (MK-677) – 25mg per capsule
• Ligandrol (LGD-4033) – 25mg per capsule
• RAD-140 (Testolone) – 25mg per capsule
• Myostine (YK-11) – 25mg per capsule
• Capsule Shells – Cellulose and water
• No Fillers or Additives – Pure lab-grade compounds

Recommended Post Cycle Therapy (PCT)

Due to the potency of this stack, Post Cycle Therapy (PCT) is strongly recommended. Use SARMs Cycle Support to support hormonal balance and recovery following research cycles.

Why Choose Lab SARMs

• Trusted UK-Based Supplier – High-quality lab-grade compounds
• Fast, Secure Shipping – Royal Mail Tracked and secure delivery options
• Lab-Grade Verified – All compounds tested for purity and consistency
• Multiple Secure Payment Options – Pay by Bank, card, and more

Important Disclaimer

All products, including the Ultimate Mass Stack, are strictly for laboratory research purposes only. They are not intended for human consumption and must be handled according to local regulations.