Level 1 Prime stack

30mg/ml 30ml Ostarine available in both 30ml and 50ml

25mg/ml 30ml Andarine available in both 30ml and 50ml

The Level 1 Prime Stack focuses on receptor selectivity and molecular efficiency by combining Ostarine (MK-2866) with Andarine (S-4). Both are selective androgen receptor modulators used in research to study anabolic signalling, receptor binding strength, and structure activity relationships.

Ostarine offers mild, balanced receptor activation that has been extensively documented, while Andarine acts as a partial agonist, meaning it binds strongly but produces a moderate receptor response. This makes it particularly useful for studying dose dependent activity and receptor saturation thresholds.

Together, they provide researchers with two contrasting profiles within the same receptor family a combination ideal for examining how modulation strength affects receptor regulation, selectivity, and potential feedback within androgenic systems.

Research Purposes Only, Do Not Consume