4. Sleep. Take enough sleep. This is the natural way to increase libido. Low libido often is a result of inadequate sleep. Your adrenal glands may be really starred and need some rest. Look no further than the Chinese herbs of Ginseng and Ginkgo Biloba which protect the blood vessels, while ensuring healthy blood flow around the body and to the extremities such as the genitals. L-Arginine is a non necessary amino acid and is essential for regular performing of the pituitary gland.