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Essiac tea: how does it work?

Author: Aida Rejzovic   Date Posted:7 April 2026 

Essiac tea is a popular herbal remedy that has been used for decades. This article explains what essiac tea is, its ingredients, potential health benefits, side effects, preparation methods, and where to buy it. It is intended for those interested in natural remedies and herbal supplements, and is especially relevant due to its popularity as a wellness tea and alternative remedy.

 

Essiac tea is a blend of four herbs—burdock root, sheep sorrel, slippery elm bark, and Turkish rhubarb root - popularised in the 1920s by Canadian nurse Rene Caisse as a natural remedy. Today, it is widely marketed as a dietary supplement for its purported anticancer, detoxifying, and immune-boosting properties. Despite its reputation, essiac tea lacks peer-reviewed clinical evidence for cancer treatment and is not approved by the U.S. Food and Drug Administration (FDA) for this purpose. Nonetheless, it remains a popular choice among those seeking natural ways to support their health.

 

Key takeaways

  • Essiac tea is a traditional herbal blend made from burdock root, sheep sorrel, slippery elm bark, and Turkish rhubarb root.
  • It is popularly used for its potential health benefits, including immune support, detoxification, and antioxidant properties.
  • Essiac tea is marketed for its purported anticancer, detoxifying, and immune-boosting properties, but lacks peer-reviewed clinical evidence and is not FDA-approved.
  • Some studies suggest antioxidant and DNA-protective activities, but scientific evidence for its effectiveness as a cancer specific treatment is lacking.
  • Essiac tea is naturally caffeine free and has a slightly bitter, earthy taste.
  • Common side effects include nausea, mild diarrhea, and headaches, especially if taken in large doses.
  • Pregnant or breastfeeding women and individuals with breast cancer should avoid Essiac tea without medical advice.
  • Proper preparation involves boiling the herbs as a decoction and sipping the diluted tea slowly, preferably before bed or on rising.
  • Consult a health practitioner before starting Essiac tea, especially if you have underlying health conditions or are on medication.

 

Essiac Tea Loose

 

What is essiac herbal tea?

Essiac tea is a popular herbal blend used as a dietary supplement. It is made from a combination of four herbs: burdock root, sheep sorrel, slippery elm bark, and Turkish rhubarb root. This blend was popularised in the 1920s by Canadian nurse Rene Caisse, who used it as a natural remedy for her patients. Essiac tea is marketed for its purported anticancer, detoxifying, and immune-boosting properties, and is believed to help the body eliminate toxins and other harmful substances.

Some studies indicate that Essiac tea possesses antioxidant and DNA-protective activity, properties that are common to natural anti-cancer agents. However, no peer-reviewed clinical trials in humans have confirmed the effectiveness of Essiac tea in treating cancer, and it is not FDA-approved as a medical treatment.

To date, there is no scientific evidence to suggest that essiac tea works as an immune stimulant but many people who drink it say they feel better after drinking it regularly for some time and still believe in its healing properties. Some studies have explored its effects on cancer cell growth and its potential as a source of anti-cancer agents.

Now, let's look at the key ingredients that make up essiac tea.

 

Key Ingredients and their properties

Essiac tea is a unique herbal tea blend made from four powerful ingredients, each playing a specific role in the blend:

  • Burdock root, one of the four herbs in essiac tea, is renowned for its cleansing properties. It helps flush toxins from the bloodstream, supports the liver and lymphatic system, and promotes healthy skin by increasing blood flow near the surface. Rich in disease-fighting antioxidants, burdock root is also known for its anti-inflammatory effects, making it a valuable component in supporting the immune system and protecting against chronic diseases.

  • Sheep sorrel, another key ingredient in the essiac tea blend, acts as a mild diuretic and gentle laxative, helping to improve digestive health and support natural detoxification. Sheep sorrel is also believed to have antiviral properties and plays a role in boosting immune health, making it an important part of the traditional formula.

  • Slippery elm bark, included in the essiac tea blend, soothes and protects mucous membranes throughout the digestive tract. Its antioxidant properties help treat and prevent bowel diseases, while its anti-inflammatory effects support the liver and lymphatic system. Slippery elm is also valued for its ability to promote digestive comfort and overall gut health.

  • Turkish rhubarb root, the fourth herb in essiac tea, acts as a gentle laxative, helping to purge the liver of toxic buildup and waste. It is naturally rich in antioxidants and is thought to support immune health and reduce the risk of chronic diseases. This root is also believed to contribute to the DNA-protective activity of the essiac herbal tea formula.

 

Herbal Tea

 

Ingredients benefits

Together, these four herbs create a purifying bitter decoction that is naturally caffeine free and packed with antioxidant properties. The benefits of essiac tea are thought to include support for natural detoxification, improved digestive health, and enhanced immune system function. Some studies have explored its potential as a natural anti-cancer agent, particularly in relation to cancer cells and breast cancer cells, but more research is needed to fully understand its effects.

The amount of tea consumed depends on individual needs and health goals, and it is typically enjoyed as a herbal tea diluted with boiling water. If you are considering taking essiac tea - especially as an alternative treatment or if you have underlying health conditions - it’s important to consult with a health practitioner prior to starting. Some people also choose to buy essiac tea in combination with flor essence for additional potential health benefits.

In summary, the unique combination of burdock root, sheep sorrel, slippery elm bark, and Turkish rhubarb root in the essiac tea blend offers a range of potential health benefits, from supporting natural detoxification to promoting immune health and digestive wellness. While the traditional benefits of this herbal blend are well known, always seek guidance from a health practitioner to ensure it’s right for your individual needs.

Next, let's explore what Essiac tea tastes like and how it is typically consumed.

 

What does essiac tea taste like?

Like other herbal teas, essiac tea is not sweet. It has a strong flavour that some people compare to root beer or licorice. However, it's not as sweet as other herbal teas because it contains no sugar and doesn't have any added flavours.

Essiac tea taste is slightly bitter and earthy and is designed to aid the body in removing toxins and wastes, allowing cellular renewal and improved health. Each ingredient helps boost the immune system and detoxify the body.

Essiac tea is generally not enjoyed for its taste, but for its functionality. It tastes slightly bitter due to rhubarb root and burdock root in it. You may wish to add a sweetener, but in general this tea is not bought because it tastes nice, but rather because of the benefits that it offers.

Now that you know what essiac tea tastes like, let's look at its potential health benefits and possible side effects.

 

Organic Merchant Essiac Tea

 

Essiac tea health benefits and side effects

Essiac tea is widely marketed for its potential health benefits, including immune support, detoxification, and antioxidant properties. However, it is important to be aware of possible side effects and risks.

Common side effects

Some common side effects of essiac tea, especially if taken in large doses, include:

  • Nausea
  • Vomiting
  • Mild diarrhea
  • Headaches
  • Frequent urination
  • Increased bowel movements
  • Skin issues
  • Flu-like symptoms
  • Swollen glands

Because the herbs in essiac tea can be hard on your digestive system, it is important to start out with a small amount and gradually increase it over the course of several days.

If too much essiac tea is consumed, it could lead to gastrointestinal discomfort, diarrhoea, diabetes, kidney stones, and headaches/nausea.

Who should avoid essiac tea

  • Women who are pregnant or breastfeeding should avoid essiac tea.
  • Individuals with breast cancer should avoid essiac tea, as some studies have found that it may stimulate the growth of breast cancer cells.
  • If you have a weakened immune system or another health condition that makes you vulnerable to infections or disease, you should avoid taking essiac tea without first consulting with your doctor.

Potential risks

  • Excessive consumption of essiac tea or other detox teas may increase the risk of kidney stones.
  • Long-term use of essiac tea may potentially cause kidney stones or liver damage due to oxalic acid content.
  • Essiac tea is associated with increased uterine activity, flu-like symptoms, and headaches.

 

Essiac tea dosage

The amount of tea consumed depends on you and the condition of your health. Typically, the dosage that is recommended is 30 ml of herbal tea diluted in 60 ml of hot water. This should be sipped slowly, preferably before bed or on rising. Food should be avoided at least an hour after drinking the tea. The reason for sipping the tea is that the tongue is the initial point of interaction with the herbs and some of the components start their action here, specifically the bitter actives.

Essiac tea is a detox for your body and helps to discharge waste and toxins and other harmful substances. When you first start drinking it, there may be some mild side effects including a headache, mild diarrhea, nausea, or a runny nose. But don’t worry - these are all signs that Essiac tea is working! If you experience any discomfort, simply reduce your dosage. To avoid any side effect, we recommend starting with a low dose until your body adjusts to the formula.

While herbal medicine has wonderful therapeutic benefits, it is most effective when taken in combination with a wholesome diet and outdoor activities in the fresh air and sunlight.

With any serious conditions, we highly recommend that you work in conjunction with your health care practitioner. If you don’t currently have a natural health care provider, you may consider Natural Therapy Pages.

 

Burdock root

 

How to prepare essiac tea

Preparation steps

Essiac tea is traditionally prepared as a decoction, a method of boiling hard plant materials to extract active ingredients. Follow these steps:

  1. Use 10 g (1 tablespoon) of Essiac tea per 1 litre of pure spring water.
  2. Boil the herbs in water.
  3. Let the mixture steep for 20 minutes.
  4. Strain the herbs from the tea.
  5. Drink the tea hot or cold.

Serving suggestions

  • You may wish to add a sweetener or lemon juice to your cup of tea for a sweeter and tastier experience.
  • Essiac tea tastes best when prepared correctly: don't forget to steep it for at least 20 minutes before drinking!
  • Essiac tea can also be added to smoothies or other drinks for additional health benefits.

Storage tips

  • Store your tea in a glass bottle in the fridge.
  • Store out of direct sunlight below 30°C.
  • To preserve the vitality and flavour of essiac tea, keep it in an airtight container in a cool, dry place away from direct sunlight.

Please note that this tea or anything in this guide is not intended to diagnose in any way. For treatment, consult a healthcare professional.

 

Cup of herbal tea

 

FAQ

Where can I buy essiac tea in Australia and what should I look for in a high-quality brand?

You can purchase essiac tea in Australia from reputable online retailers like Sassy Organics, which offers certified organic essiac tea from Organic Merchant. When choosing a high-quality brand, look for products that use all-natural, organic ingredients, are free from artificial additives, and are packaged to preserve freshness and potency - such as in MIRON ultraviolet glass jars. Additionally, selecting a brand committed to sustainability and ethical sourcing ensures you are supporting environmentally conscious practices.

Is essiac tea effective for health goals, and how does it compare to other herbal teas?

Essiac tea is widely used for its potential health benefits, including immune support, detoxification, and antioxidant properties. While scientific evidence is limited and no clinical trials confirm its effectiveness for treating diseases like cancer, many users report an improved sense of well-being after regular consumption. Compared to other herbal teas, essiac tea is unique due to its potent mix of four specific herbs and its traditional use as a purifying bitter decoction. It is naturally caffeine free and valued more for its functional benefits than its taste.

What are the main ingredients in essiac tea and are there common substitutes or blends I should consider?

The main ingredients in essiac tea are burdock root, sheep sorrel root, slippery elm bark, and Turkish rhubarb root. Each herb contributes specific benefits such as detoxification, digestive support, and immune health. While some herbal blends may vary slightly, authentic essiac tea follows the time-honoured Ojibwe formulation popularized by Canadian nurse Rene Caisse. If you are considering substitutes or blends, ensure they maintain the core ingredients to preserve the traditional benefits associated with Essiac tea.

 

Cup of soothing organic herbal tea

 

Final Thoughts

I hope that this article has helped you learn more about essiac tea and its benefits. If you want to try it, I suggest looking for a reputable brand that uses all natural ingredients in their products. When buying any tea, make sure it is certified organic so that you know what exactly is going into your body!


1253
Organic Merchant

Certified Organic Essiac Tea (80 g)

From $28.95

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