Propolis is a sticky, usually dark coloured resin from the hive that honeybees collect from living plants and mix with wax and their own secretions, and it is used to repair and varnish their dwelling, cover the inside of the brood cells with a microscopic film of Propolis in order to sterilize a baby bee nursery and embalm dead intruders to prevent them from infecting the hive. It is also used to make the entrance of the hive weather tight and easier to defend.







