Euca-Leuca-Lime Pet Shampoo, Gallon EUCA-LEUCA-LIME provides the perfect natural shampoo to ease problems related to summer sun and pests and to help heal skin. This special formulation contains eucalyptus and d'limonene for pesticide-free effectiveness, and melaleuca alternifolia (Tea Tree Oil) to soothe irritated, bitten skin. Created with a super, fresh citrus scent, EUCA-LEUCA-LIME is suitable for use on dogs, cats and all other companion animals. Available in a concentrate, it can be diluted 6 to 1.