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Cat's claw herb: Uncaria tomentosa bark

The sacred vine of Peru

Cat's claw herb Uncaria tomentosa bark

“The life-giving vine.”

Master Plant of the Amazon, revered by the healers of South America.

from €6.86

Bark · 50g

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Cat's Claw from Peru, harvested by rural communities.

Cat's claw herb: Uncaria tomentosa bark — Bark, 50g

Bark

Daily

Cat's Claw

As a long decoction (20-30 min), a 21-day cure, in cycles.

1 · The form

2 · The amount

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⊹ Community voices

What the community murmurs.

4.9/59 reviews, including 8 left on our Etsy shop · 1 of them average 5/5

  • Pretty fast shipping! Great customer service and beautiful herbs! Personally I really liked this one, it tasted very much like iron. Only tried it once so far. Would definitely recommend this shop!

    Awena

    Daily · left on our Etsy shop · 4 May 2022

  • i tried it, the taste isn't too strong. I will continue to drink it in a long run

    joy

    Daily · left on our Etsy shop · 13 September 2021

  • Good product

    Grégory Janssens

    Daily · verified purchase · 7 October 2025

✦ Cat's Claw · in one breath ✦

A long decoction, taken in cycles — the sacred vine of Peru.

Daily
Signature INFUSEIntensity · scored out of 10
Intensity · scored out of 10
deep terrain10/10
21-day cure in cycles9/10
Asháninka tradition10/10
long decoction 20-30 min9/10
armour of the body in ceremony8/10

Register Uña de Gato, vine that creeps between the worlds · Asháninka of the Peruvian Amazon · Asháninka, formerly called Campa · Yanesha · POA chemotype, Keplinger 1990s

Cat's claw herb: Uncaria tomentosa bark — view 2

⊹ The path of the plant

⊹ FREQUENT QUESTIONS ⊹

We answer.

What is cat's claw herb?

Cat's claw (Uncaria tomentosa, Uña de Gato) is a woody vine of the Amazonian forest, recognisable by her curved hooks at the base of the leaves. The Asháninka people of Peru have used her for generations.

What are the traditional uses of cat's claw?

In Amazonian tradition, cat's claw bark is taken as a long decoction. INFUSE offers it in cures of two to three weeks, in cycles.

How do I make cat's claw tea by decoction?

The Amazonian method asks for time. Cover the bark with cold water, bring to a simmer, then let it gently bubble — the long extraction releases the alkaloids that a quick infusion does not draw out. Drink one to two cups per day, and the bark can be reused up to four times.

What is the difference between the POA and TOA chemotypes of cat's claw?

Cat's claw exists in two botanical chemotypes. According to the work of Klaus Keplinger and his colleagues in the 1990s, the Asháninka tradition favours POA (pentacyclic oxindole alkaloids); in vitro, TOA (tetracyclic) reduce its effects. Commercial sources do not always distinguish the two, which explains variability from one product to another.

How long does a course of cat's claw last?

The INFUSE tradition offers a 21-day course to immerse yourself fully in the plant, followed by a break of several weeks. Cat's claw is taken in long rhythm and in cycles, never as a permanent continuous use.

Does cat's claw have contraindications?

Use caution if you have an autoimmune disease, take immunosuppressants or are undergoing an organ transplant, because of her presumed action on immunity. Contraindicated during pregnancy and breastfeeding. Use caution if you take anticoagulants or have hypotension. If you have a medical condition, ask a healthcare professional for advice.

All questions
Where does INFUSE's cat's claw come from?

INFUSE offers a cat's claw bark from Peru, harvested by rural communities.

Which plants pair well with cat's claw?

The INFUSE formulary pairs her with Chuchuhuasi, another Amazonian Master Plant, and with Reishi, Chaga and Eleuthero.

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In depthbotany · phytochemistry · historyRead

Botany

Uncaria tomentosa is a woody vine of the Rubiaceae family — the family of coffee and cinchona. Native to the Amazon rainforest and the tropical zones of Central and South America, she climbs her host trees up to the canopy with curved, hook-shaped thorns at the base of the leaves, which give her the name uña de gato, cat's claw. The part used is the inner bark of mature vines. A related species, Uncaria guianensis, is sometimes sold under the same common name.

Phytochemistry (descriptive)

Modern research distinguishes several families of compounds in the bark: oxindole alkaloids in two chemotypes, POA (pentacyclic — mitraphylline, isopteropodine, pteropodine, uncarine F) and TOA (tetracyclic — rhynchophylline, isorhynchophylline); quinovic acid glycosides; quinic acids, triterpenes, sterols, polyphenols and flavonoids. The distinction between the two chemotypes comes from the work of the Austrian Klaus Keplinger and his colleagues in the 1990s. According to that work, the Asháninka tradition favours the POA chemotype, and in vitro the TOA reduce the effects of the POA; since commercial sources do not always state the chemotype, the profile can vary from one batch to another.

Lineage & long history

Cat's claw left the Amazon through European research in the 1970s and 80s, and has since become a widely traded Amazonian plant. That trade puts heavy pressure on wild populations, which is why the traditional harvest remains a model of ecological ethics: mature vines only, cut above the ground so that they grow back, and the inner bark only.

What the studies report

A 2024 systematic review and meta-analysis of animal studies (Arado et al., Frontiers in Pharmacology) reports lower levels of two inflammation markers, IL-6 and NF-κB, and no significant change in IL-1, IL-10 or TNF-α. These are animal data; studies in humans remain few and small, and none of this is medical advice.

Safety notes

Cat's claw is generally well tolerated at traditional doses, and is taken in cycles (courses of two to three weeks, with breaks). The main precautions concern specific immune conditions (autoimmune diseases, immunosuppressant treatment, organ transplant — where it should be avoided) and certain interactions (anticoagulants, antihypertensives). It is not advised during pregnancy or breastfeeding. If you are unsure or have a medical condition, advice from a health professional is essential.