What is propolis? Propolis is a sticky substance formed by mixing plant resin and other secretions collected by worker bees with their maxillary gland, wax gland, and other secretions. It can also be said that propolis is a gelatinous substance obtained by worker bees from tree buds, bark, and other parts of plants, mixed with secretions from bees' maxillary glands, wax glands, and other glands, and biotransformed into a gel like substance.
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