hydraSense Medium Stream Nasal Spray provides effective daily care and fast relief from nasal congestion. Made with 100% natural-source, undiluted seawater, this preservative-free formula is clinically proven to alleviate symptoms associated with colds, allergies, and sinus pressure. It works by flushing out mucus and pollutants from nasal passages, helping to facilitate better breathing. The isotonic solution contains over 70 marine trace elements and is gentle enough for daily use without the risk of rebound effects. This non-medicated spray is suitable for adults and children aged 2 and older.