Universal Rep
UniversalUSA.com
Be weary Flax seed oil can easily turn toxic.
If you did choose Flax, I would go with the seeds or meal.
Any natural product can spoil, including fish oil. That said, it's a solid reminder, A. We need to treat these important oils like fruits and veggies to keep 'em as fresh as possible. When I used to buy flaxseed oil, I'd buy the liquid out of a refrigerated case, check that manufacture date on the bottom and put it right in the fridge when I got it home.