Increased blood flow and testosterone.
Horny Goat Weed (also known as Epimedium or Yin Yang Huo in Chinese Medicine) has over a thousand year history as an herb with ability to enhance male erections. The odd name is due to the legend that it was first discovered when a Chinese goat herder noticed the increased copulating activities of his herd after they had grazed on the flowering plant.
The herb Horny Goat Weed has been touted as having multiple health benefits including the ability to help reduce elevated cortisol levels if this stress hormone is elevated and increase circulating levels of testosterone. Three of the most well known ways that Horny Goat Weed relates to stronger more satisfying erections are below:
A glycoside found in Horny Goat Weed called icariin has been shown to increase the blood flow and pressure in erectile tissue. How? Like sildenafil (the ED drug commonly known as Viagra) the glycoside icarrin in Horny Goat Weed, is said to be able to inhibit the activity of PDE-5. (PDE-5 is short for Phosphodiesterase Type 5: an enzyme known to restrict blood flow to various areas of the body including the penis.)
#2:The icariin in Horny Goat Weed has also been shown to increase nitric oxide levels. Nitric oxide is typically involved in dilating the smooth muscle