When i buy my minoxidil from Ebay, i take care (now) not to buy the cheapest one.... Like now there is a 4 Month offered at 19.95, when all the others are selling the same thing for around 22.50-25.00 + shipping. I would stay away of the one at 19.95
I remember one time i bought a 4 pack of Rogaine brand minoxidil 5%. When i have opened the box, i noticed that the sticker that is normally glued on the bottle was a plastic sleeve that was surrounding the bottle. All the same info written on it, all the same, except it was not a sticker glued on it. Opened it, smell it, was smelling like alchool and was not yellowish in colour but more like just alchool... clear like water. Of course these 4 bottles were dirt cheap, this i why i bought them. Didnt take the chance to use them at all, bought an other 4 from somebody else and all was fine.
You have to be smarter than the one you are dealing with sometime.