Propolis is a mixture of substances used by bees to defend their hive. This protection consists of filling cavities in the walls of the hive, reducing entry on cold days, and also mummifying the required intruders, thus preventing their decay. This explains why propolis is also known as bee glue (Kędzia, B. et al 2008).

Resveratrol is a polyphenol whose main natural sources are red grapes, red wine, berries, and peanuts.