Sinomarin Nose Care Mini Spray is a clinically validated nasal decongestant that is entirely natural. Rich in all the good things found in the sea (minerals and trace elements), it is a hypertensive seawater solution (2.3% NaCl). Sinomarin Nose Care Mini Spray uses osmosis, a natural process, to reduce sinus pressure and nasal congestion. It also cleanses and moisturizes the nasal passages.