Authentic Essiac is the eight herb formula
approved by Rene Caisse and Dr. Charles Brusch.

It is important that you use authentic essiac to reap the benefits you have heard about using essiac tea. While the four herb formulas probably do have some effect, Rene Caisse and Dr. Charles Brusch found the eight herb formula to be most effective. Click here for the full story on eight herb essiac and the clinical trials performed on it.

***We use the entire sheep sorrel plant, including the roots, in our formula! Our sheep sorrel is 65% root.***

It is important to differentiate between "original" and "authentic" to understand how to choose the best essiac. Like everything else, original versions of medicines, herbal or otherwise, aren't necessarily the best. In fact, it's rare that the first version of anything is the best! Usually, what happens when a new product is produced, scientists conduct research on it, experimentation is performed, and it is tested in the real world for results. Over time the effectiveness of products including herbal treatments tends to improve.

An "authentic" product is one that is 100% what it says it is on the label, and that it is of the highest quality. Our essiac formula is the essiac tea that is proven to be most effective when it's administered orally as a tea. Accept no imitation!

The Beginning of Essiac

It is believed that essiac was used by Native Americans for the purpose of treating maladies at a time when there was little or no cancer. It is interesting to note that this original essiac was not actually created with the goal of treating cancer in mind.

While Rene Caisse was working as a nurse in a hospital, one of her patients gave her some of this essiac and told Caisse that she was using it to treat her cancer. Rene Caisse was astounded to learn that the woman's cancer had been reversed! However, this version of essiac was not effective in every case; in fact, quite a few people died in spite of being treated with the essiac.

Modifications to the Essiac Formula Began

After many years of research, doctors developed a version of the essiac formula that was to be injected into the patient. Treatment by injection turned out to yield more consistent results in the patients. All of this information has been documented in a hand-written testimonial by Rene Caisse as well as signed papers by staff physicians.

Rene Caisse attempted to get permission from the Canadian Ministry of Health to give physicians throughout Canada the go-ahead to inject the authentic essiac formula, but she didn't get anywhere. Around that time, Dr. Brusch's older brother had heard about Caisse's work and decided to research the information. However, he too was unsuccessful with convincing the Canadian Government to officially recognize the formula.

One of the formulas being tested was an injectable four herb version. This four herb formula was never meant to be consumed orally. In 1959, Rene Caisse decided to take further action. Since physicians weren't allowed to inject this essiac formula without government approval, she was concerned that this valuable formula may be lost forever. Dr. Charles Brusch invited Rene Caisse to the Brusch Medical Center in Cambridge, Massachusetts, in an attempt to develop an oral formula that carried the same efficacy level as the injection. There were fewer rules and regulations surrounding tea made to drink as opposed to an injection.

Resperin Corp. Gains Preliminary Rights
to the Essiac Formula

In 1977, Rene Caisse signed over a four herb formula to Resperin Corp. of Canada under the stipulation that Resperin complete clinical tests on the formula. The agreement granted permission for the use of essiac as research only, and dictated that if they did not complete these tests, Dr. Charles Brusch would have complete control of the formula (Dr. Brusch and Caisse had performed clinical tests on essiac together in the 1960's). It turns out that Resperin breached the contract by never completing the tests, but the formula still remained with them.

Dr. Charles Brusch Gains Control of the Essiac Formula

After further research, an oral essiac formula was developed that contained eight herbs, including the four herbs from the formula that was designed to be injected. Exclusive rights to the formula were left to Dr. Charles Brusch in 1977 (a year prior to Rene Caisse's death). This formula was deemed to be the most effective formula to date.


This 1-minute video below shows Rene Caisse preparing the powdered essiac herbs.




The eight herb formula Rene Caisse revealed to Dr. Charles Brusch contained: Burdock Root, Blessed Thistle, Kelp, Red Clover, Sheep Sorrel, Slippery Elm Back, Turkey Rhubarb Root, and Watercress. Brusch performed eight years of clinical research on this oral form of essiac. He even took it himself when he fell ill with cancer. Brusch made the claim that this eight herb essiac alone cured his cancer.

During a variety of clinical trials held in Cambridge at the Brusch Medical Research Center, Brusch and Caisse experimented with essiac capsules, tablets, and tinctures, among other methods. Time and time again, the method of administering treatment that resulted in the most potent and effective formula was to return the herbs to the liquid after brewing, a.k.a. Essiac tea or Essiac juice.

Check out this video showing how Dr. Brusch worked alongside Rene Caisse.




Rene Caisse passed away in 1978, and Dr. Brusch passed away in 1993. The eight herb formula that was found to be superior in the Brusch clinical trials is the most effective form of essiac tea available. We recommend consuming it just as it was in those studies: in brewed tea form (avoid using pills, capsules, or tea bags) and taken on an empty stomach.

Have other questions about "authentic essiac" and our essiac tea?
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Disclaimer: Essiac is not FDA tested and has not been FDA approved as a treatment or cure for any health problem, including cancer. We do not represent it as such on this site. You must determine whether essiac is a treatment method you should pursue. We have provided accounts and descriptions that represent the opinions of a variety of experts in the alternative treatment world as well as actual users of essiac. We believe that our formula is the most effective essiac formula being sold in the world, and that our essiac tea ingredients are of the highest quality. However, we do not endorse anything on this site as medical fact.