Paws Furst Joint Support with MSM for Dogs and Cats (60 Chewable Tablets) (All Natural. Revolutionary New Formula That Contains No Glucosamine, No GMOs, No Shellfish, No Gluten, No Pork, No Soy or Artificial Ingredients) Paws Furst Joint Support for Pets contains several patented and proven effective ingredients. One thing you won't find here is shellfish based glucosamine. We've replaced glucosamine with water soluble BiovaPlex, a more effective and easier to absorb ingredient made from eggshell membrane. All Natural ingredients, processed for maximum absorption and efficacy, designed to help your pet's joints become healthy and stay healthy. Don't let them suffer; give them the freedom of living pain free with Paws Furst Joint Support with MSM.. Contains a digestive enzyme to help boost the effective ingredients by promoting absorption. NO GMOs, Soy, Shellfish, Gluten, Pork, or Artificial Ingredients. Pets love the taste and it's guaranteed to work or your money back.