When I read what was in a four pill serving I knew I'd get bang for my tiny buck.Though I cannot tolerate 4 pills a day I've taken half suggested dosage and do feel some sense of well being as if where I'm lacking on any substance is being slowly corrected. I'm half way through my first bottle(I got 2) and am glad to say I am gonna try to work this resource into my limited income when I've finished the other bottle. I read all the literature and was lucky to get this at a reduced rate,but that has no bearing on my review because either something works or it doesn't. All in all I highly recommend this product,company,and end result. Thank you for the coupon.