$15 a pound sounds very cheap, but is it effective? The last two brands of olive leaf extract I tried didn't help much. The Olympian is very strong and very effective. You cheap bulk powder might work as well as the concentrated suff(if a much larger dosage is taken) or it might not. You should experiment. Perhaps buy just one bottle of the Olympian and see how your bulk olive leaf compares. When I first opened the bottle of the Olympian olive leaf, I was struck by how much more fragrent it is than the other brands I tried. Is your olive leaf very fragrent?