Both American ginseng (Panax quinquefolius) and Asian ginseng (Panax ginseng) roots are taken orally as adaptogens, aphrodisiacs, nourishing stimulants, and in the treatment of type II diabetes, as well as sexual dysfunction in men. The root is most often available in dried form, either whole or sliced. Ginseng leaf, although not as highly prized, is sometimes also used; as with the root it is most often available in dried form.
This ingredient may also be found in some popular energy drinks: usually the "tea" varieties or functional foods. Usually ginseng is in subclinical doses and it does not have measurable medicinal effects. It can be found in cosmetic preparations as well, with similar lack of effect.
Ginseng root can be double steamed with chicken meat as a soup. (See samgyetang.)