Xailin Night Lubricating Eye Ointment is a multi-dose, preservative-free ointment for night-time relief of dry eye sensations.. Xailin Night Lubricating Eye Ointment acts as a barrier against moisture loss and pr s soothing relief for the symptoms of dry eyes such as soreness, irritation, or a gritty sensation. This lubricating ointment is ideal for night time use. Lubricating ingredients Xailin Night Lubricating Eye Ointment contains white soft paraffin, white mineral oil, and lanolin alcohols which create a moisture-retaining film on the surface of the eye to help relieve the dry eye sensation.