Farnam Excalibur Sheath Cleaner is a specially formulated cleaner for horses’ sheaths and udders that gently softens, loosens, and removes accumulated oils, dirt, and debris (smegma) It contains Australian tea tree oil to help dissolve smegma and make cleaning faster and easier The non-irritating formula is safe for equine use, excellent for breeding stallions, and can also be used as a spot remover and whitener