9 Best Green Tea Extract Supplements For Immune & Metabolism Support

Green tea extract is becoming increasingly popular for its many health benefits such as boosting metabolism, aiding weight loss, providing antioxidants, and improving overall health.

However, with so many options in today's market, finding the right product is becoming difficult. In this article, we will summarize for you the 9 best green tea extract supplements, ensuring safety, effectiveness, and convenience.

Comparison Table Of Best Green Tea Extract Supplements

The chart below illustrates the percentages of Polyphenols and EGCG in various Green Tea Extract Supplements, allowing for an easy comparison of their key antioxidant and metabolic support components.

How We Choose the Best Green Tea Extract Supplements?

When choosing green tea extract pills, you should carefully consider a number of factors to ensure safety, effectiveness, and the best quality.

Active Ingredient Concentration

We prioritize green tea extract supplements with a high concentration of polyphenols (90% or more), catechins (at least 50%), and EGCG (above 40%). These compounds deliver potent antioxidant effects, support metabolism, and promote overall health. A well-balanced formulation maximizes benefits while minimizing unnecessary fillers.

To better understand how to choose the right product, let’s take a closer look at these key compounds:

• Polyphenols (up to 98%) – A group of plant-based antioxidants that help protect against oxidative stress, support heart health, and enhance cognitive function. High-quality green tea extracts typically contain 50%-98% polyphenols.
• Catechins (typically 50%-80%) – A subgroup of polyphenols with strong free radical-neutralizing properties. The four main catechins include:
  • EC (Epicatechin), EGC (Epigallocatechin), ECG (Epicatechin gallate) – Contribute to antioxidant and general health benefits.
  • EGCG (around 45%) – The most powerful catechin, known for supporting weight loss, slowing aging, and improving cardiovascular health. EGCG typically makes up 50%-75% of total catechins in green tea. A content of 40% or higher is ideal for maximum efficacy.

Choosing the Right Supplement Based on Your Needs:

• For strong antioxidant benefits → Opt for a high polyphenol content (above 90%).
• For effective fat-burning and metabolism support → Choose an extract with high EGCG (above 45%).
• For fewer side effects (e.g., stomach sensitivity, insomnia) → Select a supplement with moderate catechin levels (50%-70%) and caffeine-free options.
• If you're sensitive to caffeine → Go for a decaffeinated green tea extract.

Important Note: To avoid potential side effects like liver strain or digestive issues, do not exceed 800mg of EGCG per day.

Purity and Quality Standards

The best green tea extract supplements are free from artificial additives, preservatives, and harmful chemicals. We select products that undergo third-party testing to verify ingredient purity, potency, and safety. Organic or non-GMO certifications add further credibility to a supplement’s quality.

Caffeine Content Consideration

Caffeine sensitivity varies among individuals, so we evaluate both caffeinated and decaffeinated options. While natural caffeine enhances energy and metabolism, decaffeinated extracts provide the same antioxidant benefits without stimulating effects, making them ideal for those avoiding caffeine.

Price

Price is also a very important factor when choosing to buy green tea extract on the market today. The products suggested in this article include many different price levels to suit each person's budget, while still ensuring the best quality.

Reputable Brand and Consumer Trust

We prioritize supplements from established brands with a strong reputation, transparent labeling, and consistently positive customer reviews. Trusted brands often have years of experience and a diverse product portfolio, earning consumer confidence through proven quality.

However, newer brands can also offer high-quality products. To assess them, we carefully examine certifications, third-party testing results, and product claims to ensure transparency and accuracy across multiple sources.

Forms of Green Tea Extract Supplements

Traditionally, green tea has been consumed as loose-leaf tea. However, to cater to diverse consumer preferences, green tea extract is now available in various forms, including capsules, powders, and liquid drops.

Each form offers unique benefits in terms of convenience, absorption, and potency. The following product list provides a range of Green Tea Extract supplements, helping you choose the option that best suits your individual needs.

9 Best Green Tea Extract Supplements for Immune & Metabolism Support:

Vinatura Caralluma Fimbriata Green Tea Extract Fucoxanthin 1250mg - 30 Servings | $25.89

Why Do We Choose It?

Vinatura Caralluma Fimbriata Green Tea Extract Fucoxanthin 1250mg is a high-potency weight management supplement designed to support appetite control, metabolism, and overall health.

Featuring a blend of Caralluma Fimbriata, Green Tea Extract (EGCG), and Fucoxanthin, this product delivers a concentrated formula to aid in weight management and metabolic function.

Each serving contains 1,250 mg of active ingredients, including 625 mg per capsule of a powerful 60:1 Caralluma Fimbriata extract. The supplement also includes 98% polyphenol-rich green tea extract, standardized to 45% EGCG, which supports immune health, heart function, and mental focus.

Additionally, the Fucoxanthin 3% concentration enhances the formula’s effectiveness in promoting overall well-being and fat metabolism. Manufactured in a cGMP-certified facility in the USA and third-party tested for quality, this supplement ensures purity and potency.

With over 100 monthly purchases on Amazon, this product has gained recognition in the #168 spots in Appetite Control & Suppressants, receiving praise not only for its effectiveness but also for Vinatura’s responsive customer service.

Customers report noticeable appetite suppression and weight loss benefits, making it a favored choice among those seeking a natural supplement for appetite control.

Angela Arcila initially hesitated to purchase the product due to past experiences with ineffective appetite suppressants. However, after using Vinatura Caralluma Fimbriata Green Tea Extract Fucoxanthin, she was pleasantly surprised by the results*. She shared:

“...So far, I've lost about nine pounds since I started—my appetite is a lot less, I hardly want to eat like before, and I'm not snacking. I did take three pills sometimes, but then my appetite was very little, so I went back to the two pills per day. I was surprised that I felt no side effects at all… I am on my second bottle and very pleased with the product.”*

However, it’s important to note that this supplement contains a small amount of caffeine—1.45 mg per serving, derived from green tea extract. While this is a minimal dose, individuals who are sensitive to caffeine should consider this before purchasing.

Pros

• 1,250 mg of high-potency ingredients, including Caralluma Fimbriata 60:1 extract, Green Tea Extract (45% EGCG), and Fucoxanthin 3%.
• Supports appetite control, metabolism, and immune health.
• Third-party tested and manufactured in a cGMP-certified facility in the USA.
  
• Vinatura Supplements is known for its transparency and commitment to quality.
• Positive customer feedback on weight loss benefits and appetite suppression.
• 90-day replacement or refund guarantee.

Cons

• Contains a small amount of caffeine (1.45 mg per serving), which may be unsuitable for caffeine-sensitive individuals.

Vinatura Berberine Green Tea Extract Resveratrol Red Yeast Rice Co-Q10 1300mg - 30 Servings| $29.89

Why Do We Choose It?

This Vinatura Supplements product combines Berberine, Green Tea Extract, Resveratrol, Red Yeast Rice, and Coenzyme Q10 (CoQ10) along with Ceylon Cinnamon, Beet Root, Amla, Bitter Melon, and Fenugreek (50% Saponins), this formula delivers a multifaceted approach to health maintenance.

Each serving provides 100 mg of Green Tea Extract, standardized to 95% polyphenols and 45% EGCG, an antioxidant known for its role in neutralizing free radicals and promoting heart health by supporting healthy lipid levels.

However, unlike Vinatura Caralluma Fimbriata Green Tea Extract, which focuses on metabolism and weight support, this formula is tailored for cardiovascular and immune health.

Berberine activates AMPK, an enzyme essential for energy regulation and metabolism, helping maintain optimal health parameters. Resveratrol, found in grapes, blueberries, and nuts, is a potent antioxidant studied for its benefits in heart health and longevity.

In addition to these primary ingredients, the formula also includes minerals like Red Yeast Rice, Coenzyme Q10 (CoQ10), Magnesium Glycinate Chelate, Zinc Glycinate Chelate, and Chromium Picolinate, which contribute to maintaining healthy levels within the normal range.

Customers appreciate Vinatura’s transparency and commitment to quality, as all products are third-party tested in a cGMP-certified facility in the USA, with lab results accessible via the brand’s official website. However, some users have noted that availability can be an issue.*

Ruby Martinez, a verified customer, mentioned:

“I liked this product but it was hard to get.”*

While this supplement provides well-rounded support for cardiovascular health, it may not be the ideal choice for those looking for a standalone Green Tea Extract supplement, as its formulation focuses on multiple synergistic ingredients.

Pros

• Comprehensive formula supporting cardiovascular health, metabolic balance, and antioxidant defense.
• 100 mg of Green Tea Extract (95% polyphenols, 45% EGCG) for heart health and free radical protection.
• Berberine activates AMPK, aiding in metabolic regulation.
• Resveratrol and CoQ10 contribute to cardiovascular support and energy production.
• Red Yeast Rice contains bioactive compounds that support healthy lipid levels.
• Includes additional beneficial ingredients such as Ceylon Cinnamon, Beet Root, Amla, and Fenugreek.
• Manufactured in the USA, third-party tested, with lab results available for transparency.

Cons

• Availability may be inconsistent, making it difficult to purchase at times.
• Not ideal for those looking for a pure Green Tea Extract supplement.

Nature's Bounty Green Tea Pills 315mg - 50 Servings | $9

Why Do We Choose?

Nature’s Bounty Green Tea Pills is a widely trusted green tea extract supplement designed to support heart health and provide antioxidant benefits.

As an Amazon Choice product with over 4,000 reviews and more than 3,000 monthly purchases, it is one of the most popular options in the Green Tea Herbal Supplements category, currently ranking #6 on Amazon.

Each serving contains 630 mg of Green Tea Extract, standardized to 15% polyphenols, ensuring potent antioxidant support. With 100 capsules per bottle (equivalent to 50 servings), the product provides a two-month supply at a competitive price of $8.62 (after a 28% discount)—breaking down to $0.17 per serving.

Customer reviews are overwhelmingly positive, with many users highlighting its effectiveness in appetite control and how easy it is to swallow. The product’s mild stimulant effect from natural green tea content has also been noted as a benefit by some. However, a few users have reported receiving bottles with missing capsules, raising concerns about quality control in packaging.*

Additionally, individuals with sensitivities to maltodextrin should be aware that this supplement contains maltodextrin, which may cause digestive discomfort for those with gut sensitivities.*

Pros

• 630 mg of Green Tea Extract per serving, providing antioxidant and heart health benefits.
• Amazon Choice product, highly rated with over 4,000 reviews.
• Competitive pricing at $0.17 per serving, making it a cost-effective option.
  
• Supports appetite control and is easy to swallow.
• Two-month supply (100 capsules, 50 servings) at an affordable price.

Cons

• Some users reported missing servings in their bottles, indicating potential packaging issues.
• Contains maltodextrin, which may not be suitable for individuals with digestive sensitivities.

Life Extension Decaffeinated Mega Green Tea Extract - 725 mg - 100 Servings | $11.25

Why Do We Choose?

This product is designed for individuals sensitive to caffeine who still want to benefit from green tea extract’s heart and brain health properties.

Unlike many other green tea supplements on the market, Life Extension Decaffeinated Mega Green Tea Extract is completely decaffeinated, making it a standout option for those looking to avoid stimulant effects while still reaping antioxidant benefits.

Each serving provides 725 mg of Green Tea Extract, standardized to 98% polyphenols and 45% EGCG, ensuring strong antioxidant protection. The product is non-GMO, gluten-free, and manufactured in the USA, reinforcing its high-quality standards.

As an Amazon Choice product with over 3,000 monthly purchases, it has earned a 4.4-star rating from 1,435 reviews and ranks #10 in Green Tea Herbal Supplements. Customers report benefits that go beyond weight loss, including metabolism support, immune support, and overall antioxidant protection.*

Additionally, Life Extension frequently offers discounts and promotions, including up to 40% off, 20% coupons, and gift card deals on Amazon, making it an affordable and accessible choice.

Despite its effectiveness, some customers have reported that the capsules are too large, making them difficult to swallow. A few 1-star reviews also mention mild side effects, so individuals with sensitivities to any ingredients should review the formulation carefully before purchasing.*

Pros

• Decaffeinated formula, ideal for those sensitive to caffeine.
• 725 mg of Green Tea Extract per serving, standardized to 98% polyphenols and 45% EGCG.
• Non-GMO, gluten-free, and manufactured in the USA.
• Amazon Choice product, highly rated with over 3,000 purchases per month.
• Supports heart health, brain function, metabolism, and immune system strength.
  
• Frequent discounts and promotions, including up to 40% off and additional coupons.

Cons

• Capsules are large, which some users find difficult to swallow.
• Potential side effects reported, so individuals with ingredient sensitivities should proceed with caution.

NOW Foods Supplements, Green Tea Extract 400 mg with Vitamin C - 250 Servings | $15.98

Why Do We Choose?

NOW Foods Green Tea Extract 400 mg with Vitamin C focused on cellular protection and supporting a healthy response to metabolic stress. Unlike many other green tea supplements, this product stands out for its added Vitamin C, which enhances antioxidant properties and further supports immune health.

Each serving contains 400 mg of Green Tea Extract, standardized to 40% catechins, along with 60 mg of Vitamin C and 32 mg of naturally occurring caffeine. With 250 servings per bottle, this supplement offers long-term value up to 4 months.

Additionally, it is non-GMO, vegan/vegetarian, soy-free, and GMP-certified, ensuring quality and safety. NOW Foods, a family-owned company operating since 1968, follows NPA A-rated GMP certification standards, meaning its manufacturing process and testing methods meet the highest industry standards.

As an Amazon Choice product with over 2,000 monthly purchases and 4,000+ reviews, it has earned a 4.6-star rating, with customers highlighting its energy-boosting and weight management benefits.

Unlike Life Extension’s Green Tea Extract, which focuses more on heart and brain health, NOW Foods Green Tea Extract is preferred for its moderate-sized capsules that are easier to swallow. However, some customers have reported receiving empty capsules, likely due to manufacturing defects.*

Pros

• 400 mg of Green Tea Extract per serving, standardized to 40% catechins.
• Added 60 mg of Vitamin C for enhanced antioxidant and immune support.
• Non-GMO, vegan/vegetarian, soy-free, and GMP-certified for quality assurance.
  
• 250 servings per bottle, offering a long-lasting supply.
• Highly rated on Amazon (4.6 stars) with over 4,000 reviews.
• Moderate capsule size, making it easier to swallow compared to some competitors.

Cons

• Some customers have reported empty capsules, likely due to production issues.
• Contains 32 mg of naturally occurring caffeine, which may not be ideal for those sensitive to stimulants.
• Natural color variations may occur, though this does not affect product quality.

Nature's Nutrition Green Tea Extract Capsules 1000mg 120 Servings | $17.03

Why Do We Choose It?

Nature’s Nutrition Green Tea Extract Capsules 1000mg with 98% polyphenols, 75% catechins, and 45% EGCG, is designed to boost energy, support heart health, and promote metabolism.

One of the standout features of this product is its high dosage—each serving contains 1000 mg of Green Tea Extract, delivering a concentrated dose of EGCG to help increase metabolism and maintain energy levels throughout the day. Additionally, it is made with vegan capsules and free from harmful additives or preservatives, appealing to those who prioritize clean, natural ingredients.

With over 3,000 customer reviews and more than 200 monthly purchases, this well-rated supplement has earned a strong reputation in the green tea category. Many users report improved energy levels and reduced cravings when taking it consistently. Emily P, a long-time user, shared:

“Not everyone likes the taste of green tea, but the benefits are undeniable. I've taken green tea extract off and on for the last several years, and when I'm on it, I notice I feel better and more energetic. I noticed an acceleration in my metabolism as well. Great addition to anyone's vitamin regimen!”*

However, due to its high potency, some users may experience mild side effects, such as a rapid heartbeat or difficulty sleeping, particularly if taken in the evening.

Pros

• High dosage (1000 mg per serving) for powerful metabolism and energy support.
• 98% polyphenols, 75% catechins, and 45% EGCG for strong antioxidant benefits.
• Vegan-friendly capsules, free from preservatives and harmful additives.
• Supports cardiovascular health and overall well-being.
  
• Highly rated, with 3,000+ customer reviews and frequent purchases.

Cons

• May cause mild side effects like a rapid heartbeat or difficulty sleeping, especially if taken at night.

Drop Of Nature Green Tea 2500mg 10:1 Extract 50% EGCG 250mg - 30 Servings | $17.99

Why Do We Choose It?

Drop of Nature Green Tea 2500mg 10:1 Extract is a liquid green tea supplement designed for maximum absorption and versatile use. Unlike traditional capsules or tablets, this liquid drop formula allows users to easily mix it into beverages or food.

Each serving contains 250 mg of green tea extract, standardized to an impressive 98% polyphenols, 80% catechins, and 50% EGCG, ensuring a potent antioxidant and metabolism-boosting effect.

The product is also non-GMO, gluten-free, made in the USA, and third-party lab tested, guaranteeing quality and purity. With over 1,000 purchases and 1,458 ratings on Amazon, it has secured the #12 spots in the Green Tea Herbal Supplements category.

Customers appreciate its pleasant pineapple flavor and the convenience of a liquid format, which eliminates the need for brewing tea or swallowing pills. Many users report increased energy levels and weight management benefits. Glenn, a verified buyer, noted:

“Great tasting pineapple-flavored product. Much easier way to get EGCG than brewing some tea. Nice, concentrated formula.”*

However, some users find the dropper design inconvenient, especially when the product is running low. Additionally, there have been discrepancies in the product description, with the supplement facts listing 250 mg per serving, while the description on the image claims 2500 mg, potentially causing confusion for customers.

Pros

• Liquid formula allows for better absorption and flexible use.
• High-potency green tea extract (98% polyphenols, 80% catechins, 50% EGCG).
• Pleasant pineapple flavor, making it more enjoyable than capsules or brewed tea.
• Non-GMO, gluten-free, made in the USA, and third-party lab tested.
• Highly rated on Amazon with 1,000+ purchases and strong customer satisfaction.

Cons

• Dropper design may become inconvenient as the bottle nears empty.
• Inconsistent labeling of dosage (250 mg listed on supplement facts, but 2500 mg in the image description), which may confuse customers.
  

Bulk Supplements Organic Green Tea Extract Powder 500mg - 200 Servings | $15.97

Why Do We Choose It?

Bulk Supplements Organic Green Tea Extract Powder is a great choice for those looking for a powdered supplement that can be mixed into drinks or smoothies. This product is pure green tea extract, contains no additives, and is Certified organic by USDA, ensuring clean and safe quality.

With the natural energy-boosting properties of green tea, this product is especially suitable for those who want to improve their athletic performance or stay energized throughout the day.

User Mommyof4 left a positive review: I wanted an alternative to the smoothie king pure recharge so I looked up some of the ingredients and took to making my own.

This stuff blends well into my smoothies and I do feel like it gives me the boost I need to get through the day. I use it in combination with some other supplements and it doesn’t have an overpowering taste or negative effect on my smoothie.

Pros

• Powder form is very easy to mix into drinks and smoothies, bringing convenience to users.
• Certified organic by USDA, ensuring the product is chemical-free.

Cons

• Some users may not like the natural taste of matcha powder, especially if not brewed properly.
• Not convenient to carry outside compared to capsule form.
  

Zenwise Health Green Tea Extract 725mg - 120 Servings | $59.94

Why Do We Choose It?

Zenwise Health Green Tea Extract combines 725 mg of Green Tea Extract (98% polyphenols, 50% EGCG) with 25 mg of Green Coffee Bean Extract (50% chlorogenic acids) to provide a dual-action antioxidant and heart support.

This product has 8,000 customer reviews and 1,000+ monthly purchases on Amazon, ranks #13 in Green Tea Herbal Supplements, proving its popularity and effectiveness.

Customers appreciate its value for money, ease of swallowing, and mild taste, while also reporting benefits such as reduced inflammation and better post-exercise recovery. However, some users have experienced stomach discomfort and headaches, which could be related to individual sensitivity to green tea extract or chlorogenic acids.

Additionally, Zenwise Health Green Tea Extract is NSF-certified, a highly stringent quality and safety standard, ensuring its purity and effectiveness. However, it is a little bit expensive green tea supplements on the market, priced at $59.94, making it less accessible for budget-conscious consumers.

Pros

• NSF-certified, ensuring superior safety and quality standards.
• Contains Green Coffee Bean Extract, which provides additional antioxidant and anti-inflammatory benefits.
• Highly rated with over 8,000 reviews and consistently purchased by consumers.

Cons

• Premium price at $59.94
• Some users report stomach discomfort and headaches, likely due to ingredient sensitivity.

Conclusion

Green tea extract is one of the best supplements for overall health, with benefits ranging from weight loss and increased energy to supporting heart health and the immune support. Choosing the right product depends on your personal health goals and budget, but any of the products on the list above will make a significant impact on your health.