In the world of bodybuilding and fitness, finding the perfect stack to maximize your gains while minimizing side effects can be a daunting task. Fortunately, the rad 140 and mk 677 stack, also known as the RAD140 MK677 stack, is gaining immense popularity for its potential to deliver impressive results. In this comprehensive guide, we will delve into the details of this powerful combination, shedding light on each component's benefits and how they work together to create a synergistic effect.


Mass Building Stack Components

GH Booster MK-677 (Ibutamoren) - 15mg

What is MK-677?

MK-677, also known as Ibutamoren, is a Selective Androgen Receptor Modulator (SARM) that mimics a growth stimulator. Unlike many other substances that increase cortisol levels, which can lead to various side effects, MK-677 offers a unique advantage - it doesn't affect cortisol levels.

Benefits of MK-677:

  • Growth Hormone Stimulation: MK-677 significantly increases the levels of growth hormone in the bloodstream, promoting muscle growth and recovery.
  • Lean Muscle Mass: It stimulates the production of insulin-like growth factors (IGFs), leading to increased lean muscle mass without a corresponding increase in fat mass.
  • Improved Bone Health: MK-677's action extends to your bones, potentially enhancing bone strength.
  • Enhanced Sleep: Users often report improved sleep quality, including longer REM (Rapid Eye Movement) cycles, resulting in deeper and more restful sleep.
  • Low Side Effects: MK-677 offers numerous benefits with minimal side effects, making it a preferred choice for many.

Stacking Recommendations: To maximize the benefits of MK-677, consider stacking it with Cardarine (GW-501516) and Testolone (RAD-140).

Anabolic LGD4033 (Ligandrol) - 10mg

What is LGD4033?

LGD4033, known as Ligandrol, is a potent SARM known for its remarkable effects on strength and muscle size. Unlike steroids, Ligandrol selectively binds to androgen receptors in bones and muscles, minimizing undesirable side effects.

Benefits of Ligandrol:

  • Strength and Size: Ligandrol is renowned for its ability to increase strength and promote muscle growth.
  • Muscle Healing: It accelerates the muscle healing process, allowing you to recover faster between workouts.
  • Fat Reduction: Ligandrol has been shown to reduce body fat, contributing to a leaner physique.
  • Minimal Testosterone Suppression: While some suppression of testosterone may occur, it is typically minor and short-lived.

Stacking Recommendations: Ligandrol can be used for both cutting and bulking cycles, with dosage varying accordingly.

Test Booster RAD140 (Testolone) - 15mg

What is RAD140?

RAD140, also known as Testolone, is a SARM that mimics the effects of testosterone without being a hormone itself. This unique characteristic makes it highly effective for increasing lean muscle mass and reducing body fat.

Benefits of RAD140:

  • Lean Muscle Gain: RAD140 boosts lean muscle mass while concurrently reducing body fat, providing a lean and chiseled physique.
  • Neuroprotective: This SARM selectively targets androgen receptors in the brain, potentially enhancing memory, recall, and reaction times.
  • Anti-Catabolic Effect: RAD140 has shown to preserve muscle tissue and promote fat loss.

Stacking Recommendations: RAD140 is a versatile SARM that can be used for both bulking and cutting cycles. Dosage should be adjusted according to individual goals.

Myostatine YK11 - 5mg

What is YK11?

YK11 is a unique SARM that binds to androgen receptors and modulates myostatin, allowing for rapid muscle growth. It is an ideal choice for those looking to maintain muscle quality and reduce fat.

Benefits of YK11:

  • Muscle Growth: YK11's ability to inhibit myostatin enables rapid muscle development.
  • Fat Burning: It promotes the body's fat-burning capacity, contributing to a well-defined physique.
  • Lean Tissue Preservation: YK11 effectively promotes lean tissue growth while conserving muscle mass, even in a caloric deficit.

Stacking Recommendations: YK11 can be incorporated into various stacks, depending on your specific goals and preferences.

Dosage Guidelines

  • MK677 Ibutamoren: A recommended daily dose is 30mg, providing over 45 days of use. For best results, consider a one-year cycle.
  • LGD4033 Ligandrol: Suggested dosages range from 10-20mg per day, lasting 6-8 weeks. Adjust your diet for bulking or cutting accordingly.
  • RAD140 Testolone: A daily dose of 20-30mg is recommended, with each bottle lasting over 30 days. Plan your cycle for 8-12 weeks.
  • YK11: An ideal daily dosage is 10-15mg, offering over 30 days of use. Cycle length typically spans 6-8 weeks.


The Rad 140 and MK 677 stack, or rad140 mk677 stack, is a powerful combination of Selective Androgen Receptor Modulators (SARMs) that has gained immense popularity among fitness enthusiasts and bodybuilders. When used responsibly and in accordance with recommended dosages, these compounds have the potential to deliver significant benefits in terms of muscle growth, fat reduction, and overall physique enhancement.

It's important to note that these products are intended for research purposes only and should not be used for treating any medical condition. If you are considering using this stack, it is advisable to consult with a healthcare professional to ensure it aligns with your fitness goals and overall health.

Incorporate the Rad 140 and MK 677 stack into your training regimen with care, and you may unlock new levels of muscle growth and physical transformation. Remember to monitor your progress, stay consistent with your workouts and nutrition, and prioritize safety throughout your fitness journey.