All herbal products carry the potential for contamination with other herbal products, pesticides,
herbicides, heavy metals and pharmaceuticals. This is particularly concerning with Asian
For over 2000 years, the Ashaninka Peruvian rain forest people have used cat’s claw (U.
tomentosa) as a tonic to ward off disease, a contraceptive and abortifacient, and to treat various
inflammatory diseases including gastric ulcers, diarrhea and GI tumors, gonorrhea, arthritis and
rheumatism, acne, diabetes, diseases of the urinary tract and cancer.