17 Mesterone is kinda questionable. It is obviously a knockoff of the Vyotech 17-HD, and if you compare the 2 back to back on consecutive days, you can obviously tell the Vyotech version is MUCH better. The IDS version is a much better deal though.
I kinda lost faith in IDS when I checked out the new proteins they have in vials..... "Hydrolyzed Collagen". Need I say more? lol