Lean Mass Stack

$223.00 - $313.00
Current Stock:


Your choice from the drop down menu located above:

8 week cycle: (SAVE 10% OFF)

- RAD-140 x 2 30ml Bottles

- GW-510516 x 2 30ml Bottles

- OR - 

12 Week cycle: (SAVE 16% OFF)

- RAD-140 x 3 30ml Bottles

- GW-510516 x 3 30ml Bottles


*Third party tests are located on each products single bottle page*


How it works:

The lean mass stack helps provide noticable increases to raw strength, lean muscle growth over the desired 8 or 12 week cycle. Commonly paired with the extremely popular GW-510516 to provide endurance, fat oxidation and overall weight loss to help shred those extra pounds without your research subject losing hard earned gains.



1ml of each chemical daily to research subject.


Store in a cool dry place.



The products that US GAINS offer are intended for laboratory research use only. Please read our terms and conditions.

These research chemicals are NOT intended to treat, prevent, cure, or mitigate disease. These chemicals are NOT for human consumption.

*Results may vary*

How to Use+