supplements expired?

[texasaggie05]

another question...i have some AM and PM protein which are both of which are about a year and a half expired. is it still okay to use them, and what exactly expires in them? would the protein still be effective?

[MrMe]

I think thats a little too old, theres no real way to tell if its still effective unless sent out to a lab or something... cheaper to order new protein