Xailin Hydrate Hypromellose 0.3% w/v Eye Drops lubricate and protect the eye to provide immediate, soothing relief from dry eye sensations such as soreness, irritation or a gritty sensation.nXailin Hydrate Hypromellose 0.3% w/v Eye Drops are preservative free in the eye. They contain a disappearing preservative that turns into water and oxygen upon contact with your eye, thereby minimising the irritation that may be caused by traditional preservatives while still providing the convenience of a multidose form.nXailin Hydrate Hypromellose 0.3% w/v Eye Drops can be used by contact lens wearers.