NatureSeal for Home Keeps fresh-cut produce from browning for up to 1 week. Each packet treats up to 3 pounds of produce. It maintains the color and texture of cut produce without changing the flavor. This product is Allergen-free, GMO-free and Gluten-free. This new concentrated formula for home use is made from a blend of vitamins and minerals. Fresh-Cut Produce Extender treats apples, carrots, celery, peaches and pears.