Ultra Glow's Tea Tree Soap's natural ingredients of pure Tea Tree Oil and Eucalyptus Oil have natural powerful antiviral and antiseptic properties. These antimicrobial essential oils are believed to help control and kill bacteria on the skin. This natural soap does not contain Paraffin, Gluten, Propylene Glycol, Mineral Oil, PABA, DEA or Sulfates. It is recommended to test a small area of the inner arm before using a product that contains tea tree oil.