Propolis, also known as bee glue, is a sticky resinous substance collected by bees from tree buds, sap flows, or other plant sources. Bees use it as a building and repair material and as an antimicrobial substance in and around the beehive. Propolis contains compounds produced by bees as well as resins collected from plants. Its main components are usually tree resins and beeswax which give it...
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