Yeah, it is also known as bulbine natalensis, and itis indeed known to increase both the libido, and natural testosteronelevels. IN fact, in studies with rats their testies grew in size,their LH and FSH boosted, and test levels have raised dramaticallywith a decrease in estrogen levels. So it is a great supplement, butthere is a lot of low quality prolensis sold out there. You may wantto get it as part of a high quality stack, such as N2Generate. Itwill work better in conjuction with other ingredients.