Well, here's the answer to your question:

How is REMEMBER-fX different from other ginseng products?
REMEMBER-fX is a highly purified ChemBioPrint extract derived from North American ginseng (Panax quinquefolius) with chemical consistency (no less than 15% ginsenosides) as well as standardization according to biological activity. It is intended to help temporarily restore mental alertness when experiencing fatigue and has not exhibited the other immune-enhancing effects associated with the polysaccharide components of North American ginseng in laboratory studies.Although REMEMBER-fX is a natural extract of North American ginseng, its highly purified composition makes comparison with ginseng in general, inappropriate. REMEMBER-fX is also tested to ensure compliance with Canada's stringent guidelines regarding pesticide and heavy metal content, and other toxicity standards.

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I started taking it today, lets wait and see what's going to happing.