hydrasense Ultra Congestion relief for nighttime nasal congestion works quickly and effectively to clear blocked nasal passages, without drying them, helping you breathe better, so you can sleep. hydraSense nighttime saline solution relieves nasal congestion associated with colds or allergies. Clinically proven congestion relief with a pleasant feeling of freshness and cooling sensation of Eucalyptus. hydrasense Ultra Congestion relief for Nighttime congestion is made with natural source hypertonic, undiluted, sterile seawater and is free of medication or preservatives. hydraSense saline nasal spray is non-habit forming and may also reduce the use of medicated nasal decongestants. Product information is provided by the product vendor. This content is a summary for informational purposes only and does not have all possible information about this product. It should not be used as a substitute for advice from health care professionals, as this information alone does not assure that this product is safe, effective, or appropriate for you. For more detailed information on this product, including reported and possible side effects and contraindications, refer to the manufacturer's monograph, or speak with a health care provider.