Posted by iHerb Customer on Jul 10, 2009 | Verified Purchase
I have been taking a variety of dietary supplements, including vitamins, minerals, and herbs, for more than 25 years. This is one of the most powerful. In the potency of its effects, it is almost more like a pharmaceutical. I have found cordyceps to be an aphrodisiac. It increases my sex drive, my energy level, and my overall sense of well-being. After going off of it for three or four days, I feel as though my very life energy has drained away, and I become depressed. The Planetary Herbals brand is also good, but Doctor's Best seems to be especially potent. In Traditional Chinese Medicine, cordyceps is a kidney tonic. Indeed, it increases the frequency of my urination.