Essiac Tea

Also known as Flor Essence, Essiac Tea is an herbal tea mixture that contains burdock root, Indian rhubarb root, sheep sorrel, and slippery elm bark. It has been claimed to remove toxins from the body, make the immune system stronger, relieve pain, control diabetes, treat AIDS, reduce tumor size, increase cancer survival, and improve quality of life.


This study: These data indicate that Essiac tea possesses potent antioxidant and DNA-protective activity, properties that are common to natural anti-cancer agents.

This study of 510 women with a diagnosis of primary breast cancer found most women were taking Essiac to boost their immune systems or increase their chances of survival. Only 2 women reported minor adverse events, whereas numerous women reported beneficial effects of Essiac.

Why Essiac Tea Should be Part of Your Cancer Fighting Program

Source: The Truth About Cancer
Posted by: Dr. David Jockers DC, MS, CSCS

Alternative Cancer Cures
The History of Essiac Tea

Essiac tea is said to have been an ancient recipe made by the Ojibwe tribes of Native Americans who populate areas of Canada and the northern United States. It was referred to as the “Ojibwa Tea of Life.” A Canadian nurse, Rene Caisse, was the first to use it to help her patients who were recovering from various forms of cancer. (Essiac is “Caisse” spelled backwards.)

Caisse began to see remarkable results with her patients and wanted to make this elixir available for widespread usage. In the 1920s she began working with Dr. Charles Brusch to formulate an herbal mixture similar to the original drink that could be studied in a laboratory setting.1,2

Caisse and Dr. Brusch began promoting the use of Essiac tea as an effective and affordable alternative cancer treatment. This caught the attention of the mainstream medical industry who went about spreading rumors about health risks associated with consuming Essiac tea. Due to this pressure, the Federal Drug Administration (FDA) has not approved Essiac tea for use as a cancer treatment.3 Currently, the FDA lists Essiac tea as a new drug that is not generally recognized as safe.4

In spite of the negative attention they got from the public health agencies, Caisse and Dr. Brusch saw numerous patient testimonial stories using Essiac tea to overcome various forms of cancer. In 1938 (long before the internet), Caisse had over 55,000 people sign a petition to allow her to continue to treat cancer patients after she was accused of practicing medicine without a license. Thousands of patient testimonials lead to the popularity of Essiac tea far beyond Caisse, who passed away in 1978 at the age of 90. This herbal remedy can now be found in health stores all over the US and Canada and is a popular product sold in online markets.3,5

The Essiac Tea Recipe

There are four primary herbs that make Essiac tea so effective.1,5 These herbs help to destroy overgrowth of bad bacteria, viruses and parasites, and detoxify the colon, liver and kidneys.6,7

These major herbs include:

  1. Burdock Root
  2. The inner bark of slippery elm
  3. Sheep sorrel
  4. Indian rhubarb root

A newer recipe named Flor Essence contains this original recipe and includes the addition of 4 more herbs:1

  1. Watercress
  2. Blessed thistle
  3. Red clover
  4. Kelp

Essiac Tea Enhances Immune Function

Conventional cancer treatments increase the body’s toxic load and they destroy the individual’s immune system. Essiac tea, on the other hand, has shown the ability to strengthen the immune system and improve its ability to respond to infection. It also helps the body to eliminate toxins and provides pain relief which is welcome to anyone suffering from a chronic disease.2,6,8

Some of the companies that make Essiac tea recommend that the tea should not be used in conjunction with conventional cancer treatments. This is based off the idea that the immune system gets so damaged through conventional treatments that Essiac is unable to resuscitate the body’s immune response.

Many others believe that all cancer patients or immunocompromised individuals will benefit from the use of Essiac tea due to its powerful immune supportive nutrients.8 Clinical data remains limited, however, due to lack of research-based funding for the elixir.

A Concentrated Source of Antioxidants

Oxidative stress is a condition characterized by free radical damage within the body that causes cellular instability and chronic inflammation. This state of high oxidative stress is a major player in the formation of cancer cells and other chronic disease states. Anti-oxidant compounds neutralize free radicals and quench oxidative stress and are therefore key components in a cancer prevention strategy.

Essiac tea is rich in phytonutrient antioxidant flavones, anthraquinones, and tannins. It is also rich in immune supportive polysaccharides such as beta-sitosterol that feed and strengthen immune cells.5 Studies have shown that varying concentrations of Essiac tea reduce free radical development by up to 84 percent.9

Pharmaceutical drugs make cancer drugs from these same antioxidant sources. Adriamycin, a chemotherapeutic drug approved by the FDA to treat 13 forms of cancer contains these same anthraquinones.5,10

The anti-oxidant cocktail within Essiac tea is also a potent defense against superoxide free radicals. Superoxide radicals activate other free radicals and create a nightmarish storm of oxidative stress within the body.9 Immune supportive beta-sitosterol help to neutralize the dangerous superoxide radicals.5,11

Essiac May Reduce Cell Mutations

Burdock root is the major ingredient in Essiac tea and it is rich in the anti-oxidant anthraquinone which has been shown to reduce cell mutations and prevent tumor growth. Several case studies have been written up that have reported claims that Essiac tea helped see a regression of tumor size and severity of symptoms. These patients suffered from different forms of cancer including uterus, prostate, and bowel cancer as well as growths on the skin’s surface.2,5,6

Several animal studies have shown that Essiac tea usage decreases the ability of tumor cells to multiply. The researchers did note a decrease in growth of normal cells in these cases but the herbal extract was effective at preventing the proliferation of cancerous cells at a higher rate.8

Using Essiac Tea Safely

The use of Essiac tea has been a very effective strategy for thousands of people over the last century. The herbs are safe and typically well-tolerated by the body. Using Essiac tea may be a great therapeutic tool for you in your cancer prevention and immune supportive health plan.

The typical dosage that is recommended is 1 fluid ounce (30ml) once daily, diluted with 2 fluid ounces of hot water. This should be sipped slowly like a hot tea and should be done preferably before bedtime and at least two hours after eating. Food should be avoided within at least an hour after drinking the tea.

It is always advisable to consult with your physician and holistic practitioner before starting any sort of new treatment.

Adverse effects

Nausea and vomiting are the only reported adverse effects associated with the use of Essiac.
Source: National Cancer Institute

Essiac tea is not recommended for brain cancer patients as it may induce swelling, which could be life-threatening if it creates too much pressure in the cerebral cavity.


Where can I get this treatment and more information?

This study says the formula is now manufactured as Essiac® by Essiac Products in New Brunswick
Here is their website Essiac Products and Facebook page.


Cancer Treatment Options

Updated September 2024

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