EXHIBIT 10.18 THIRD AMENDMENT TO UNITED STATES EXCLUSIVE SUPPLY AGREEMENT WHEREAS, THE QUIGLEY CORPORATION, a Nevada corporation with its offices at 621 Shady Retreat Road, Doylestown, PA. 18901 (hereinafter referred to as "Quigley"), and JOEL, INC.,...United States Exclusive Supply Agreement • April 1st, 2004 • Quigley Corp • Pharmaceutical preparations
