Mass Stack

The Mass Stack is a laboratory research-focused combination of LGD-4033 (Ligandrol), RAD-140 (Testolone), and YK-11, designed for preclinical studies investigating lean muscle growth, anabolic signaling, and strength pathways. This stack targets multiple mechanisms involved in muscle development and body composition, making it ideal for advanced research on recomposition, performance, and tissue integrity.
LGD-4033 (Ligandrol) is a selective androgen receptor modulator (SARM) studied for lean muscle development, strength pathways, and bone health signaling.
RAD-140 (Testolone) is a SARM researched for anabolic signaling, muscle preservation, and performance-related pathways.
YK-11 is a SARM-like myostatin inhibitor explored for promoting follistatin expression and muscle differentiation signaling.
Researchers have used this combination to study synergistic effects on muscle mass, strength, and anabolic pathways, making it a popular model for advanced preclinical muscle research.
The Mass Stack is supplied strictly for laboratory research purposes and is not intended for human consumption.