Using leftover Dr Greens Agent X?

Hi. I have a question. I had to take a test and used the latest Dr Greens about two weeks ago. Well I guess I bought the bigger bottle cuz I only used like half. Well I didnt get the job bcuz of my background check, which sucked drama long story. Anyways. I have a new opp and wanted to know if the leftover is still good to use again?! It has been sealed up in the box with the lid on.... Anyone know?! I'm super strapped for cash and cant shell out another $45!!! Anyone know or have a good website to refer to?!?! Thanks a bunch!!!:D

Ok just in case other question this too, on dr greens we site itsays it can be reheated so Im guessing its ok to use. I'll let you know if I get tested and need to use it