ABOUT Make sinus health a daily priority, whether your issues are seasonal in nature or ever-present. This potent blend supports healthy histamine levels, promotes reduced sinus irritation, and provides immune support with ingredients like propolis, quercetin, bromelain, and nettle leaf. KEY INGREDIENTS 200 mg Propolis 350 mg Quercetin 250 mg Bromelain 300 mg Nettle Leaf BENEFITS Irritant Inhibition: Bromelain, a protein-digesting enzyme, and nettle leaf join forces to support a natural inflammatory response to irritants. Histamine Health: Quercetin, a unique bioflavonoid often found in fruits, seeds, vegetables, and grains, promotes healthy histamine levels. Propolis-Powered Defense: Propolis is the defender of the hive—and your immune system, delivering antioxidants like flavonoids & polyphenols that fight germs and protect against oxidative stress. Formulated with Doctors: We’ve partnered with leading physicians and medical professionals to create potent formulas backed by science and research.