Polyethylene glycol 400, 0.4%. Propylene glycol, 0.3%. Lubricant. Sterile. Preservative-free. High performance. Temporary relief of burning and irritation due to dry eye. Compare to Systane Ultra Preservative-Free active ingredients (This product is not manufactured or distributed by Alcon Laboratories, Inc., owner of the registered trademark Systane Ultra Preservative-Free). Essential care since 1979. 100% money back guarantee. All Leader brand products have a 100% money back guarantee. Return to place of purchase if not satisfied. www.myleader.com. Questions or comments? Call 1-888-527-4276.