Cat’s Claw (Uncaria tomentosa) – Shredded Vine from Brazil

Cat’s Claw and the tradition of forest decoctions

The woody strands of shredded Cat’s Claw recall a familiar form of Amazonian herbal preparation: pieces of climbing vine and bark gathered for a slowly simmered decoction. Uncaria tomentosa is known locally as uña de gato or unha de gato, both referring to the curved hooks that secure it to surrounding trees. Maya’s material is wild-harvested in Brazil, naturally dried and shredded by hand.

Knowledge carried through communities

Research in the Tikuna communities of Macedonia and San Martín de Amacayacu, in the Colombian Amazon, describes Cat’s Claw knowledge as something shared through families and contact with neighbouring communities. The study distinguishes U. tomentosa from U. guianensis and records bark decoctions as the principal preparation for both. It also shows how information from Peru and regional trade contributed to changing local uses.

The spiritual background is equally specific. A Tikuna account recorded in that research connects the origin of medicinal plants to Metare, a wise figure remembered as an early healer. Cat’s Claw belongs within this broader understanding of medicinal plants, rather than having a separate origin story in the communities studied. The account offers a glimpse of how practical remedies and stories about the beginnings of plant knowledge can coexist.

Elsewhere, in Peru’s Ucayali region, researchers documented U. tomentosa bark in the cleansing stage of supervised plant dietas. Its role there was to prepare apprentices for further learning within a healer’s tradition. These regional accounts give the vine cultural depth while showing that its meaning varies between communities.

What a decoction reveals about the plant

A decoction is prepared by simmering plant material in water. This method has particular relevance to Cat’s Claw because research has examined bark preparations modelled on traditional Peruvian practice. A 2005 study identified proanthocyanidins and phenolic acids, especially caffeic acid, in the resulting liquid.

The researchers also measured how the decoction reacted with several oxidising substances in laboratory tests. These experiments helped describe the chemistry of a customary preparation. They were not a clinical trial, and the composition of the tested bark decoction should not be assumed for every commercial vine material. The bitter, woody character associated with Cat’s Claw also belongs to its traditional preparation history.

Brazilian sourcing

Our shredded Cat’s Claw is supplied without additives or fillers. Its Brazilian origin forms one part of a much wider botanical range extending through tropical Central and South America.

Store tightly closed in a cool, dry place. For the ground form, see our Cat’s Claw vine powder from Brazil.

This product is sold as a botanical specimen. Information on traditional, cultural and reported uses is provided for educational and ethnobotanical purposes only and is not a recommendation for any particular use. This product is not intended to diagnose, treat, cure or prevent any disease.