THAYERS NATURAL REMEDIES DRY MOUTH SPRAY PROVIDES INSTANT MOISTURE TO HELP YOU COMBAT THE EFFECTS OF XEROSTOMIA. THIS 4 FL. OZ. BOTTLE HAS TRIS-AMINOS AND CITRIC ACID FOR A PLEASING, NATURAL CITRUS FLAVOR THAT ALSO HELPS STIMULATE YOUR NATURAL SALIVA FOR EVEN MORE MOISTURE. THE NATURAL, VEGETABLE-BASED FORMULA IS SAFE TO SWALLOW, SO YOU CAN USE IT AS OFTEN AS NEEDED.