This complete system works together to help you clean, treat, and protect your horse’s skin with a gentle formula that includes tea tree oil and a powerful Biopolysan® booster derived from coconuts to enhance the formula’s efficiency. Fungasol® has been proven to help treat fungal and bacterial skin conditions, making it a great first line of defense since the exact nature of equine skin problems isn’t always readily apparent. 13 oz. ointment jar.