Systane Complete Preservative Free are hydrating eye drops that provide effective relief from burning and irritation caused by dry eyes. The drops are formulated without preservatives, meaning they are ideal for sensitive eyes. Systane Complete PF eye drops also help relieve dry eye symptoms associated with contact lens use. They can be applied as needed throughout the day and can be used before or after removing contact lenses. Systane Complete PF drops have a milky white appearance before application. Benefits of Systane Complete PF eye drops: preservative free, offer fast-acting relief from burning and irritation caused by dry eyes, restore moisture to dry eyes and help protect the surface of the eye, suitable for use with contact lenses and can be applied before and after contact lens removal.