If you have been looking for the best body building supplements in the market, then you certainly must have come across chrysin. These supplements are taken for the purpose of increasing the testosterone level and stimulating the production of testosterone in order to bulk up on muscle mass. Chrysin actually falls under the category of chemicals that are called the flavonoids and these are usually present in various plants, like the passionflower as well as other geranium species. It is said to be found on honey as well as the bee propolis.