Subtle until it isn't
I've taken a good number of supplements and herbs over a good number of years, and the effectiveness of this company's black maca, while subtle at first, stands out quite a bit. It's like checking on accumulating interest after some time; you're shocked by the progress if you're patient, and this is no different: I've improved my overall energy, libido, and strength since my first order (working on my 2nd now), and the effects/benefits accumulate over time!