Helps you breathe better. Soothing sinus wash. Can be mixed in either a hypertonic or an isotonic solution suitable for adults and children 6 years and up. Soothing treatment for sinus & allergy symptoms. Physician approved. No burning or stinging. Preservative free. Iodine free. Buffered to neutral pH. Safe for use during pregnancy. Developed with a physician recommendation. Buffered to eliminate burning or stinging.