Every round, brown-colored, solid-formed lozenge has a menthol, eucalyptus oil, ascorbic acid, and peppermint extract inside. Vitamin C is also included to support a stronger immune system. Every lozenge provides maximal strength relief from sore throats and congested noses. This product, Zile Zilox Nasal Congestion, is devoid of gluten, sugar, alcohol, and coloring.