Information Reviews Ask Dr. Dan Product Description Douglas Laboratories Cat's Claw for immune function support. Recommended use: Take 1 capsule daily or as directed by a healthcare professional. Label Information Dairy Free Gluten Free Douglas Laboratories Cat's Claw Facts: 1 Capsule contains: Cat's Claw (Uncaria tomentosa, bark) 500 mg Other Ingredients: Gelatin (capsule) and vegetable stearate.