MacKENZIES smelling salts are a traditional remedy used to relieve symptoms of head colds and congestion caused by inflamed mucous membranes in the throat and head. MacKENZIES smelling salts contain a powerful, aromatic and conventional combination of ammonia liquor and eucalyptus essentials oils.nThe combination of ingredients works together to produce a potent aroma to ease congestion and clear the airways which helps to reduce the feeling of a blocked, stuffy nose. MacKENZIES smelling salts are fast acting and easy to use. Simply sit back, inhale deeply and you\'ll feel immediate relief and relaxation.nFeatures of MacKENZIES smelling salts 17mln An aromatic blend of essential oilsn Airways feel clearn Relaxing and enjoyablen Easy-to-usen Effective relief from symptoms of congestion, catarrh and head coldsn Traditional remedy