All natural dry eye moisture. Instantly re-hydrates tear film. Will not burn, sting or blur. Easy mist application. Contact lens safe. Chemical & saline free. All natural. No chemicals. Unlike eye drops, only Nature's Tears EyeMist adds soothing natural moisture to the eye without flooding the tear film's lipid layer. The patented ultra-fine mist penetrates and tear film's lipid layer to soothing moisture to the aqueous (water) layer. Tear film & dry eye. 1. Lipid Layer: Thin top layer that lubricates eyelid and slows evaporation from Aqueous Layer. 2. Aqueous (Water) Layer: Thick middle layer that is 99% water. When the Aqueous Layer loses water/moisture, dry eye and discomfort may result. 3. Mucin Layer: Thin bottom layer that adheres the tear film to the corneal surface. Safe for all ages. No drop application. EyeMist contains 100% bio-logic aqua tissue cultures grade water/trade secret, is pure, all-natural, pH-balanced and biocompatible with the natural tear film. The micron-mist instantly re-hydrates tear film while also moisturizing skin around the eyes and eyelids. Use between eye drops. Eye drops trap and seal moisture but do not add supplemental moisture to the tear film. Only Nature's Tears EyeMist adds supplemental moisture to the tear film. If you are using eye drops, it is suggested that you apply Nature's Tear EyeMist first to add supplemental moisture prior to using drops to seal the moisture. Nature's Tears EyeMist offers safe and effective relief between eye drop applications. Made in the USA.