(Systane* Ultra Lubricant Eye Drops): Active Ingredients - Purpose: Polyethylene Glycol 400 0.4% - Lubricant. Propylene Glycol 0.3% - Lubricant. (Systane* Ultra Lubricant Eye Drops): Inactive Ingredients: Aminomethylpropanol, Boric Acid, Hydroxypropyl Guar, Polyquad* (Polyquaternium-1) 0.001% Preservative, Potassium Chloride, Purified Water, Sodium Chloride, Sorbitol, May Contain Hydrochloric Acid And/or Sodium Hydroxide To Adjust Ph. (Systane* Gel Drops Lubricant Eye Gel): Active Ingredients - Purpose: Polyethylene Glycol 400 0.4% - Lubricant. Propylene Glycol 0.3% - Lubricant. (Systane* Gel Drops Lubricant Eye Gel): Inactive Ingredients: Aminomethylpropanol, Boric Acid, Edetate Disodium, Hydroxypropyl Guar, Polyquad* (Polyquaternium-1) 0.001% Preservative, Potassium Chloride, Sodium Chloride, Sorbitol And Purified Water, May Contain Hydrochloric Acid And/or Sodium Hydroxide To Adjust Ph.