Need expiration date advice on Isopure protein powder

I have Isopure protein powder in that giant grey tub, the zero carb strawberry flavored kind, I haven't used it in so long but just started thinking that I might add some shakes in on certain days but just checked it and the expiration says 6/08.
It was so darned expensive and still 1/2 full so I feel very bad for it to go to waste, is it really truly bad or with powders are they conservative with exp dates and is it possible I might be able to use it for a little while more?

Nah, it should be just fine! Maybe not as "fresh" but it should have all of the amino's still there. If it were me, I'd use it!

I would see if there is a toll free customer service number on the jar.  In my experience, the protein loses its effectiveness and you don't get as much or any of the nutrient that you expect to be getting...

Sorry.......

Anjanette