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Cat's Claw

Cats Claw for Immunity and Inflammation

Natures Way Cats Claw bark (Una de Gato and Uncaria tomentosa) is one of the most important medicinal plants of the peruvian rainforest and has been used in a variety of conditions associated with the immune and digestive systems due to its anti inflammatory and immune stimulating properties such as asthma, fibromyalgia, ulcers and Crohn's disease. The main constituents of this herb are the pentacyclic oxindole alkaloids (POA), triterpenoid glycosides, sterols and proanthocyanidins, giving this herb its immune enhancing, anti-inflammatory and antioxidant actions.  485mg per capsule. 100 capsules


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Nature's Way


100 Capsules

Common Uses

What are the benefits of Cats Claw?

  • Cat's Claw's immune enhancing, anti-inflammatory, anti-allergy and anti-tumour properties make it useful in a variety of conditions associated with the immune and digestive systems including: gastric ulcers, arthritis, intestinal disorders, certain skin disorders, herpes, candida, chronic fatigue, lupus, tumors, Crohns disease, leaky bowel, colitis, diverticulitis, gastritis, ulcers, intestinal flora imbalance & haemorrhoids, arthritis & rheumatism, female hormonal imbalances, irregularities of the female cycle and with symptoms of PMS.
  • Also prevents the formation of blood clots, lowers blood pressure, increases circulation & inhibits the formation of plaque. It is also helpful with female hormonal female imbalances, irregularities of the female cycle and with symptoms of PMS.

Suggested Dosage

Take 3 capsules two or three times a day, preferably with food.

Health Information

Cats Claw Bark - Immune enhancing and Anti-Inflammatory

Reports of successful use as a South American folk remedy for cancer prompted scientists in Germany, Austria, and Italy to take a closer look at cat's-claw. Compounds called proanthocyanidins were found to inhibit tumour growth in animals in the 1970's.

Studies at the University of Munich in 1985 found several alkaloids in U. tomentosa root with significant immunostimulant activity. In 1993 Italian researchers found new compounds, quinovic glycosides, which showed antiviral, antimutagenic, and antioxidant effects in preliminary pharmacological tests.

An Austrian research group found several alkaloids, including uncarine F, inhibit the growth of tumour cells in laboratory tests. Root material may as be as much as four times stronger than stem bark.

Cats Claw and the Immune System

In Germany and Austria, standardized cat's-claw extracts have been given to cancer patients under a physician's care to stimulate their immune system. They have also been used in cases of rheumatoid arthritis, allergies, herpes infections, gastric ulcers, gastritis, and AIDS. The products are registered pharmaceuticals in these countries and are available only by prescription. Controlled clinical studies are underway, results to date are inconclusive.


Each capsule contains 485mg of Cats Claw bark (Uncaria tomentosa).  Other ingredients: Gelatin capsule, cellulose, magnesium stearate.


Keep out of reach of children. Like other immunostimulants, cat's claw should be avoided in diseases of the immune system itself, such as tuberculosis, multiple sclerosis, and HIV infection. In Germany and Austria, standardised products are not allowed to be combined with therapies involving hormones, insulin, fresh blood plasma, vaccines, or in other certain special situations. Consult a health professional before using cat's claw.

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