Hylo-Dual Eye Drops have a dual mode of action and contain high-quality hyaluronic acid and ectoine for dry eyes with lipid phase imbalance, irritation, and allergy symptoms. Osmoprotectant provides lubrication to the eye's surface. Hylo-Dual Eye Drops are compatible with contact lenses. In addition, Hylo-Dual Eye Drops include no preservatives or phosphates.