Cat’s claw (Uncaria tomentosa) is a woody vine native to the Amazon and Central American rainforests. Cat’s claw bark and root have been used for centuries by South Americans as a remedy for a wide range of ailments, including stomach ulcers and fevers. It has been shown to have immune-modulating, antioxidant, and anti-inflammatory effects and research is looking into its potential use for several health benefits.‡

‡ These statements have not been evaluated by the Food and Drug Administration.
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