Product Description Herbal Lung Health EssenceThese ingredients on the lungs and respiratory system through blood irritants, dilute the mucus in the trachea and lungs, help expel sputum and residues within 2 hours, and dredge the airway. Helps reduce coughPurified water, dendrobium, extract, burdock leaf, natural and safe. Auxiliary Stability MaintenanceHerbal Lung Health Essence Auxiliary stability maintenance have protective membrane nourishment and purification Deep PenetrationHealth from the inside out, Powerful lung support. How To UseUse the Spray to suck under the tongue for 1-2 miles, 3 times a day. It is not recommended to use more than 7 miles per day. Specification Shelf life:3 years Net weight:30ml/bottle Package Includes: 2pc*Respinature Herbal Spray