Eliminates unsightly tear stains & stains on paws. All natural. No antibiotics. No pharmaceuticals. Veterinarian Recommended: Formulated by Dr. Nancy Scanlan, DVM and Dr. C. Leigh Broadhurst PhD. Individual results may vary. Best results with consistent and continual use. Product Facts: For dogs and cats 12 weeks and older. All natural. No: pharmaceuticals or antibiotics (i.e. Tylosin). Pet eye stains are caused by excessive licking. Damp pet hair is a breeding ground for bacteria and yeast growth. The most common is red yeast. No Stains Fur Me, our all natural herbal formula bolsters your pet's immune system and helps control the growth of bacteria and yeast responsible for the stains. - Dr. Nancy Scanlan, DVM. About Ark Naturals and our ingredients. Our ingredients and manufacturing processes are all natural, human quality and are GMP (Good Manufacturing Practices) compliant. Proud members of NPA, APPA and NASC. Manufactured in the USA in FDA/OTC inspected facilities.