Denosyl is a nutritional supplement for managing a variety of liver problems such as liver disease. Denosyl is for dogs and cats. It is recommended to improve hepatic glutathione levels in dogs and cats. It has also been shown to improve liver function by protecting and repairing liver cells. For optimal absorption, give your dog or cat Denosyl on an empty stomach, at least an hour before feeding. Buy Denosyl and improve your pet's liver health.