Pioneer® Cold Front contains vitamins A, C and Zinc to help provide nutritive support during the cold weather season.* Pioneer Cold Front comes in a soothing mint tablet. Pioneer Cold Front also has key ingredients Elderberry, Monolaurin, and Andrographis. Pioneer Cold Front has been independently verified gluten-free. Pioneer Cold Front contains no added artificial preservatives, colors or flavors and undergoes a rigorous heavy metal, pesticide, herbicide and fungicide screening process.