Cats Claw (Una de Gato, Uncaria Tomentosa) promotes and enhances immune system function, anti-viral, anti-inflammatory, and anti-rheumatic activities. Used for generations by the Ashaninka Indians, Cat's Claw (uncaria tomentosa), also known as Una de Gato, is a woody vine that gets its name from the two curved thorns at the base of each leaf. Cat's Claw grows wild in the highlands of the Peruvian rain forest where it grows up into the trees. Studies have shown that the inner bark of the vine contains the same beneficial properties as the root and is the preferred plant part since it can be gathered without destroying the plant. In fact, the bark will grow back and replenish itself as long as the root remains intact. Cat's Claw is currently the focus of ongoing clinical studies and scientific review. Since 1922, Alvita has been making the finest herb teas money can buy. Pure, natural singles and blends that bring you unsurpassed enjoyment, healthful benefits and complete satisfaction. No less reassuring is our unwavering commitment to the environment. Today, no herb tea company goes as far to protect the Earth and its precious resources--this package and its contents being testimony. There is no plastic shrink wrap on the outside. The box is 100% recycled board that can be recycled again. The finish is water-based. And inside, a single, reusable wax bag, instead of a polybag, seals in freshness. Our tea bags are English Pillow Style, with no strings, tags or staples attached. Even the tea bag paper is recyclable. And all our bags are oxygen bleached, not chlorine bleached, to safeguard you and our ground water. Degradable. Recyclable. Reusable. The key component of each is the word able . At Alvita, we wholeheartedly believe we are all able to play a key role in preserving the wondrous world we live in. For us, it starts with offering you the most environmentally safe and responsible herb teas possible. Suggested Use: The best way to make a cup of this tea is by the decoction method. Place one tea bag in 6-8 oz. of boiling water. Simmer up to 15 minutes and then remove bag. Add honey to sweeten. Ingredients: Cat's Claw