Hyalorunic acid's main purpose is to retain and replenish moisture. Its ability to bind immense quantities of water to the nasal mucus membrane ensures an effective and long-lasting level of hydration. It helps to soften mucus crust and buildup to facilitate easy removal. Sodium has natural antibacterial properties and helps to create a protective barrier against cold and flu viruses, making it ideal for use before travelling. Chamomile soothes the mucous membranes of the nasal passage and helps to relieve inflammation. Sodium hyaluronate (hyaluronic acid,sodium salt, S.e. natural source) ....0.04 %Non-medicinal ingredients:Water for injections, sodium phosphate, dibasic, dodecahydrate, sodium chloride, sodium dihydrogen phosphate, chamomilla recutita flower extract. Adults (19 years +): 1 – 2 sprays per nostril.Use 1 – 3 times (max) per day.1 spray = 140 mg = 0.14 mL Shake before each use. Place the tip of the applicator at the base of one nostril. Do not insert the tip/applicator more than ½ cm. Press gently to dispense spray. Repeat with other nostril. Blow or wipe nose after use.