This bulking stack combines two of the most potent SARMs with a growth hormone secretagogue.
Stacking LGD-4033 (Ligandrol), RAD-140 (Testolone), and MK-677 (Ibutamoren) offers a powerful combination that targets multiple performance goals simultaneously: muscle growth, strength gains, recovery, fat loss, and improved sleep. Each compound in this bulking stack plays a unique role, and when used together, their synergistic effects can produce exceptional results.
LGD-4033 (Ligandrol)
LGD-4033 is a selective androgen receptor modulator (SARM) known for its muscle-building potential. It binds selectively to androgen receptors in muscle and bone tissue, promoting anabolic activity without the harsh side effects associated with traditional steroids. Users typically report lean gains of 4–8 lbs within a cycle, along with noticeable strength increases and faster recovery times between workouts.
RAD-140 (Testolone)
RAD-140 is among the most potent SARMs for pure strength and muscle density. It provides a more “dry” gain than LGD-4033, helping users achieve that hard, vascular look. RAD-140 also has neuroprotective properties and can support testosterone levels during a cycle, which helps maintain energy, libido, and mental sharpness. When stacked with LGD-4033, the two create a complementary effect—one promoting lean mass, the other reinforcing strength and muscle definition.
MK-677 (Ibutamoren)
MK-677 is not a SARM but a growth hormone secretagogue. It stimulates the ghrelin receptor and elevates endogenous growth hormone and IGF-1 levels. This results in improved recovery, better skin elasticity, joint repair, and deeper, more restorative sleep. Additionally, MK-677 enhances appetite and can support the bulking phase by promoting nutrient absorption and muscle fullness.
Advanced bulking stack overview
Stacking LGD-4033 and RAD-140 targets androgen pathways for rapid muscle growth and strength, while MK-677 enhances recovery and supports longer-term anabolism through growth hormone elevation. The result is a potent synergy: users often experience accelerated muscle gain, faster recovery, increased training intensity, and reduced downtime from joint aches or minor injuries.
This stack contains two bottles of each of the compounds. An 8th week cycle of this advanced bulking stack may look like this:
| Week | Daily dosage of RAD 140 | Daily dosage of LGD 4033 | Daily dosage of MK 677 |
| 1 | 10 mg per day | 10 mg per day | 25 mg per day |
| 2 | 10 mg per day | 10 mg per day | 25 mg per day |
| 3 | 10 mg per day | 10 mg per day | 25 mg per day |
| 4 | 10 mg per day | 10 mg per day | 25 mg per day |
| 5 | 10 mg per day | 10 mg per day | 25 mg per day |
| 6 | 10 mg per day | 10 mg per day | 25 mg per day |
| 7 | 10 mg per day | 10 mg per day | 25 mg per day |
| 8 | 10 mg per day | 10 mg per day | 25 mg per day |
Does this stack require PCT?
RAD-140 and LGD-4033 both target the androgen receptors and will result in some suppression of natural testosterone production. Therefore, it is advisable to use some form of PCT (Post Cycle Therapy) such as Enclomiphene to restore hormonal balance.
