CASTERA Isotonic Nasal Spray

Cleanses and humidifies sensitive nasal mucous membranes

CASTERA® isotonic nasal spray humidifies dry nasal mucous membranes and helps to thin out dried up mucus secretions. Thanks to the purity and unique mineral composition of Castéra Thermal water, CASTERA® nasal spray is suitable for users with sensitive mucous membranes to help reduce the presence of pollen, dust, allergens and/or other irritants in the nasal cavity.

The addition of seawater rich in marine salts makes the solution isotonic (the salt concentration is identical to the physiological concentration of the cells of the nasal mucous membranes). 

Preservative-free.