Hello. Thank you for visiting our store, we buy things in a licensed pharmacy in the European Union. Artelac rebalance eye drops, long-lasting hydration and clear vision for constantly dry, tired and irritated eyes. Provides relief and protection in case of chronic tear film disease causing dry eyes. Electrolytes help to hydrate the eyes. Contains vitamin B12, which prevents oxidative stress, additionally providing protection to the surface of the eye. The composition includes hyaluronic acid and the system of two polymers Viscoelactor TM (PEG 8000), which moisturize and complement the physiological osmotic balance of the tear film and the surface of the eye. Contains an innovative preservative, which in the eye breaks down into natural components of the tear film (acid, water and salt ions). Can be used with hard and soft contact lenses. composition Artelac Rebalance contains 0.15% hyaluronic acid (sodium hyaluronate), 0.5% polyethyleneglycol 8000 (PEG 8000), potassium chloride, calcium chloride, magnesium chloride, sodium chloride, vitamin B, sterile water, boric acid and Oxyd (a mild preservative that quickly converts to acid, water and salt ions on the surface of the eye). Dosage Instill one drop of Artelac Rebalance into the eye 3-5 times a day, more often if necessary.