Cat'S Claw Powder Immune & Inflammation Support* The Petz Kitchen Organic & Human Grade Ingredients For Home Prepared Meals & TreatsTHE PETZ KITCHEN CAT'S CLAW whole food, human grade, whole plant, organic extract powder from the inner bark of the plant is a large, woody flowering vine that has rounded hook like thorns that resembles the claws of a cat, and grows up to 100 feet tall in the Amazon rain forests of Peru. CAT'S CLAW has been recognized by the World Health Organization (WHO) as one of the world's most important medicinal plants related to its potential alkaloid