Nan Bao (男宝) is a formula of Chinese herbs purported to increase the male libido. It is available from a variety of suppliers in similar formulations.
The capsules typically contain an amount of icariin, a substance commonly derived from "Horny Goat Weed" leaf and considered an aphrodisiac.
Ingredients
One formulation lists ingredients as follows:
References
Nan Bao Wikipedia(Text) CC BY-SA