Well, since dafox said it, I'll say it too, I've been meaning to write up something about sustain, but Ive been too lazy, too busy, too preoccupied, take your pick. But, once I caught his little review, I figured I would throw my 2 cents in too. First off, Im twice his age, and I got the same results. I noticed an overall mood and slight energy elevation, and I was AMAZED, thats right, AMAZED at the libido boost, especially in the am, even in the first couple of days. I was extremely skeptical, not because I doubt primordial, but because lately, so many things have been too good to be true, but I have to say, my mind is changed. I will be honest, sustain is too expensive for my wallet to use everyday, all the time, Im just a blue collar working man, but I am keeping my eyes open and my fingers crossed that good old nutra will have a sale, so I can stock up on it to use as part of a pct. I think its absolutely perfect for that time frame when boosting is essential, and it should rock in that department. Of course, if I could afford it, I would probably use it all the time, maybe even while on cycle, to see if it could prevent and/or at least minimize shutdown to some extent. Oh, and one last thing, I hated the smell, maybe Im just senstative, herbal, musky, orangey, whatever, I didnt like it at all, however, this did not stop me from using it, and to be honest, as good as it worked for the libido boost, if it smelled like dogshit, I would still use it during pct.