Wild Essentials "Health Defense" 100% Pure Essential Oil Synergy Blend - 10ml, Therapeutic Grade. Rich, spicy and earthy aroma - 4 Thieves formula "Health Defense" is a blend of Cinnamon, Clove, Eucalyptus, Lemon and Rosemary essential oils. Diffuse to fight airborne bacteria while filling your house with a warm and uplifting scent that has been known to help with cold and flu symptoms. Dilute and use on chest for congestion, kill germs, skin blemishes, promote healing on small wounds, etc.