Low Nitric Oxide Levels Listed below are some of the best ways to boost libido and testosterone in men: 1. GINKGO BILOBA LEAF – I wanted in the first place ginkgo because it is commonly often considered as an herb to assist with memory and brain function. This is in reality correct, however only covers one scope from the herb's benefits. Ginkgo operates by expanding the capability of blood flow via your veins and arteries therefore that effect benefits many parts with the body from your increased oxygen supply on the brain, allowing better brain function, to fuller and harder erections as increasing numbers of blood comes for the penis. In addition to this, such pills also contain other natural ingredients like l-arginine, zinc etc., which are required by your body to produce testosterone. The third whorl of your flower is the stamen, your reproductive part. The stamen is made of a thin vertical thread-like structure called a filament topped having a circular or oblong structure called an anther. The anther produces pollen, which could be the male contribution to the reproduction process in plants.