Helps birds maintain clear and healthy lungs, airways and sinuses. Builds resistance to airborne allergens and irritants, as well as is in the creation of healthy mucous membranes. Resists airborne viral and bacterial infections and gives your birds bright eyes and healthy clear eyesight. Contains tinctures of eye bright, plantain herb, marshmallow leaf, echinacea purpurea root, thyme herb, chamomile flower, liquorice root and apple cider vinegar and honey. Bottle measures the dosage for you. Add to drinking water or feed. Airborne Liquid 8 oz.