Gaia Herbs System Support Resiratory Defense Supreme promotes respiratory immune health. The respiratory system is responsible for pulling oxygen out of the air and delivering it to the blood. Maintaining respiratory health can be difficult in the face of seasonal challenges. Respiratory Defense provides synergistic herbal support for the immune and upper respiratory systems, helping restore health to mucosal tissues of the lungs and sinuses. Addressing the root cause of a systemic imbalance can restore your vitaliy. Gaia Herbs' SystemSupport products help naturally restore your body's harmony and balance.