Don't expect their customer service to help you if you want a refund, they're terrible. Get this from a more reliable company.

Great product, works without drowsiness or side affects. Don't suffer needlessly. It just kicks it.

My only summation is that maybe this product or batch is not calibrated correctly. It is literally like swallowing nothing just for the heck of it. I have chest congestion, and this had no effect for me.