Our spray is carefully formulated to promote relief and to clean while not damaging the delicate nasal mucous membrane* Propolis is a natural substance collected by bees from buds and trees. Propolis contains tree resin essential oils, waxes and bioflavonoids.* Suggested use: as a dietary supplement take 2-3 sprays per nostril, 2-3 times a day. Shake well before use. CAUTION: Bee product may cause an allergic reaction in some people