Natura Bona’s menthol Crystals are used in saunas, steam rooms, exercise areas as an inhalant and deodorizer, cosmetics, salves, balms, creams, throat lozenges, toothpaste, mouthwash, gum, foot sprays and soaks, pain relief liniments, ointments, liniments and more. They’re helpful in relieving muscular aches and pains, coughing, congestion, the flu, and upper respiratory problems. Only a tiny amount is …