The inability to conceive after a year of unprotected intercourse or the inability to carry a pregnancy to term.

* Astragalus Extract- Internal Purposes: Is said to move the sperm quickly to the site of fertilization.  Cautions: If you have a fever do not use this herb.

* Damiana, Ginseng, Sarsaparilla, Saw Palmetto, and Yohimbe- Internal Purposes: These five herbs are thought to increase sexual functions in men.

* Damiana, Dong Quai, False Unicorn Root, Ginseng, Gotu Kola, Licorice Root, and Wild Yam Root- Internal Purposes: These seven herbs are thought to increase sexual functions in women.  Cautions: If you have high blood pressure do not take ginseng or licorice.