Salex SF (Saline Surfactant) Sprays offer a combination of 0.72% saline with a gentle surfactant which are safe and non-addictive nasal sprays. Benefits of using saline with the surfactant is that it helps to loosen mucus even better and keeps the nasal mucosa hydrated for longer. Thus will not dry out the nose. The Surfactant is also used among specialists in the treatment and removal of Biofilms. Salex SF Nasal Sprays are safe for continuous use over long-term periods.