It seems that as of late, supplements are being improved through the addition of stinging nettle and testosterone boosters that contain the herb, for example, are supposed to work better. This confidence in stinging nettle partly stems from its long history of medicinal use. As for its T-boosting effects though, we have become rather skeptical—despite what many manufacturers claim.
Southern Ginseng, or Gynostemma pentaphyllum, is a climbing vine extensively found in New Guinea, and East and South Asia. The Southern Chinese and Northern Vietnamese used it as a medicinal herb in their traditional cultures. The elderly inhabitants of these areas supposedly attribute their long lives to using the herb. According to word-of-mouth, people who used this grow into old age with fewer instances of disease or illness. Because of this, Gynostemma gained the name “Immortality Herb” among the people who use it.