The "Four Thieves" synergy blend, containing the pure essential oils of clove, cinnamon bark, rosemary, lemon, and eucalyptus, has powerful antiseptic, antiviral and antibacterial properties, and stimulates the immune system.
According to legend, during the time of the Black Plague, there were four infamous thieves who managed to rob the dead and dying of their valuables, without falling ill themselves. Finally apprehended, the thieves were told to divulge their secret, or be unceremoniously killed. Choosing life, they shared their secret. During their thievery, they would cover their faces with a clean cloth soaked in a mixture of water, vinegar, and the essential oils of clove, cinnamon bark, rosemary, lemon, and eucalyptus. Afterwards, they would wash their hands and any exposed skin liberally with the mixture. This is how they claimed to stay healthy.