again guys, expiration dates are just a guideline and mean nothing if the bottles are sitting in the back of your car in the dead heat of summer or laying in direct sunlight, or laying in your moldy basement.
aside from obvious perishable items, powders and capsules will last ALONG time past expiration date(years) if stored properly.
i keep all my products in a climate controlled, DRY office environment and out of sunlight. vacuum sealing would be great option as well.
do not freeze!