level 1 Prime stack

Ostarine (MK-2866) – 10mg per capsule

Andarine (S-4) – 25mg per capsule

The Level 1 Prime Stack features Ostarine (MK-2866) and Andarine (S-4) — two selective androgen receptor modulators commonly used in research exploring receptor activation and tissue selectivity. Ostarine provides stable, full receptor engagement, while Andarine functions as a partial agonist, offering a clear comparison between strong and moderate activation profiles.

This pairing allows researchers to study how different receptor strengths influence anabolic signalling, gene expression, and tissue specific receptor responses. It’s a straightforward, well balanced combination ideal for foundational androgen receptor studies and comparative molecular analysis.

Research Purposes Only, Do Not Consume

SARMs, Gelatin capsule, Rice flour, Magnesium citrate