Marimer Agua Hypertonica 100ml is a hypertonic spray of sterile seawater indicated for adults and children to wash and decongest the nasal passages in cases of cold, sinusitis or postoperative care. It helps to decongest the stuffy nose in a natural way, thanks to its richness in mineral salts and marine trace elements. Its bi-compartmental system guarantees the protection of the formula and allows its use in any position. The seawater used in Marimer comes from the bay of Mont Saint Michel in Brittany, rich in trace elements beneficial for the treatment of respiratory disorders. It is recommended to apply 1 or 2 sprays per nostril, 1 to 3 times a day as needed, tilting the head to one side and inserting the nozzle into the nostril to spray. It is important to wash the nozzle with warm water and soap after each use.