Propolis is gathered from flowers when bees pollinate. This natural extraction gives it very high BIOflavonoid levels that can be helpful in maintaining a healthy immune system! High Strength Propolis & Herbs is a cooling and soothing liquid spray. The propolis is specially harvested and extracted to capture the full spectrum of essential tree resins (all the possible varieties, different locations and seasons). Propolis can safely be taken as a daily supplement by those without any bee related allergies. It contains proteins, vitamins, and flavonoids; a type of metabolite produced by plants that have strong antioxidant properties. These antioxidants have the ability to decrease the number of free radicals in the body that could potentially turn into diseases or cancer.