When eyes get dry, tired & uncomfortable, relieve them with Soothe Hydration! Similar to natural tears, Soothe Hydration moisturizes, comforts, and protects against further irritation. Soothe Hydration contains Povidone, a demulcent which forms a lubricating, protective layer that retains moisture on the surface of the eye and in essence helps the formulation to supplement the aqueous layer of the tear film.