It is recommended in cases of nasal pathologies that occur with accumulation of mucus that requires fluidization such as: persistent common cold, allergic rhinitis, sinusitis. Product without preservatives. Opti-Ionoc Marine Solution is a slightly hypertonic solution (more concentrated in salt than blood plasma). Due to the osmotic effect, a drainage of the excess water retained in the nostrils is achieved, which helps to fluidize the mucus and produce a decongestant effect without irritation. It allows the passage of water from a less concentrated solution to a more concentrated solution, producing the exit of water towards the nasal passages. Helps thin mucus. Produces a decongestant effect without irritation.