Bulking Stack (Mass + Strength)
Goal: Maximize muscle size, strength, and power
Stack:
- RAD-140 (Testolone) – 20–30 mg/day
- LGD-4033 (Ligandrol) – 5–10 mg/day
- MK-677 (Ibutamoren) – 10–25 mg/day
Why it works:
RAD and LGD both stimulate lean muscle growth, while MK-677 boosts GH/IGF-1 levels for recovery and size.
Hardcore Stack (Extreme Strength/Size)
Goal: Aggressive bulk or advanced users
Stack:
- RAD-140 – 30 mg/day
- YK-11 – 10 mg/day
- MK-677 – 25 mg/day
Why it works:
This stack pushes strength and size to the limits. Not for beginners, often followed by aggressive post-cycle protocols.
Bulking Stack “Strength & Density”
Goal: Strength gains + dense muscle fibers
Stack:
- RAD-140 – 20 mg/day
- S-4 (Andarine) – 25–50 mg/day
- MK-677 – 20 mg/day
Why it works:
RAD-140 builds size, S-4 helps with strength and hardness, and MK-677 increases IGF-1/GH response for enhanced recovery and muscle fullness.