What is Black Ginger extract? The black ginger (Kaempferia parviflora) is an herbaceous plant that belongs to the Zingiberaceae family (ginger family). According to a study, black ginger extract is known as natural viagra because it contains a large number of PDE5 inhibitors, which act like viagra, but without negative side effects. In traditional medicine performed in Thailand, since ancient … Continue reading Black Ginger Extract