hydraSense Gentle Mist Nasal Spray provides effective relief from nasal congestion due to colds or allergies. Formulated for daily use and for sensitive noses, this spray is made from 100% natural-source, undiluted seawater. It is clinically proven to cleanse nasal passages of excess mucus from colds, pollutants, and infections. The preservative-free, isotonic solution contains over 70 marine trace elements and minerals, helping to facilitate better breathing without the risk of rebound effects or habit formation.