Old MSTEN

Hi, I haven't been active in here for quite some time. I recently came across five factory-sealed bottles of M-Sten in my closet. I purchased them in 2014 after the prohormone ban. The manufacturing date on them is 8/14. I would like to run at least one of them before spring. Is there any reason why I can't? They are over five years old.

It should be fine if it was stored properly, worst case scenario it lost a little potency.