Field Paste contains: Green french clay - an antibacterial clay which gives the paste the perfect consistency. Bio-active honey - for its antibaterial, antifungal and antiseptic qualities and ability to make the putty sticky. Zinc oxide - a powerful, yet harmless antibacterial powder. Eucalyptus oil - as well as being an effective antifungal and antibacterial, this essential oil assists in the toughening of weakened structures. Zinc Sulphate - a powerful antifungal which is also used in feed supplements. All the ingredients in Field Paste are there to either have an antibacterial, antifungal, antiseptic effect or to improve the consistency and hence the longevity of its effect.