why do honey bees collect propolis from tree leaves and tree saps? They do so in order to keep the hive sterile and in order to keep the queen super healthy. The queen has a job, to populate the planet and to propagate life. It is an instinctive mission she has and she has to stay healthy to stay on mission. So now the question becaomes if the bees use propolis to keep the hive sterile can propolis be used to keep contaminants and toxins out of our body system? Its not my invention but science has proven that over and over again. What beenefits™ did is stick to the quality and integrity of the natural propolis and see for yourself.