“To truly understand what a powerful compound propolis is, you have to look at the plant world. Propolis comes from the giants in the plant kingdom: trees. And trees have evolved to live thousands of years, but in order to do this, they have to survive all environmental aggressors: viral, bacterial, pollution, insects, etc. To withstand all of this, trees have created a strong immunity of plant phenol chemicals and bioflavonoids to defend themselves,” says Tanya Hawkes, sustainable beekeeper and founder of organic skin care line Therapi Honey Skincare. Hawkes continued to explain that bees mainly line their hives with propolis as an external immune system.