Saline nasal spray
Nasal moisturizer. Moistens nasal passages. Local effect only. No direct brain effect — does not cross the blood–brain barrier.
Benefits
Drug-free salt-water spray that moisturizes nasal passages, thins mucus, and eases congestion and dryness.
Risks
Very safe—overuse causes only minor irritation. Use sterile or distilled water for rinses to avoid rare serious infection.
Informational only — not medical advice.
Body systems
Organs
Where to buy
Popular Saline nasal spray products on Amazon. Not medical advice — talk to a clinician before starting a supplement.
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Research (3)
- Efficacy of hypertonic nasal spray with algae in rhinosinusitis Öztürk et al. (2025) PubMed ↗
- Efficacy and Safety of Sea Salt-Derived Physiological Saline Nasal Spray as Add-On Therapy in Patients with Acute Upper Respiratory Infection: A Multicenter Retrospective Cohort Study Li et al. (2021) PubMed ↗
- Safety and efficacy of a novel nasal spray for maxillary dental anesthesia Ciancio et al. (2013) PubMed ↗
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