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7 Best Green Tea Supplements Review | Boost Your Energy

For millennia, green tea has served as a kind of miracle remedy. Its potential to treat everything from typhoid fever in the past to genital warts and Parkinson’s disease today is backed up by robust scientific research that indicates its ability to combat cancer, obesity, and other illnesses.

For the ultimate in health benefits and life-extending nourishment, look no further than green tea. Including this natural elixir into your daily diet is an effortless way to ensure optimal well-being!

This small leaf packs a major punch with its powerful antioxidants and phytochemicals that promote healthy body functions. Still, for some the intense bitterness of green tea is an acquired taste. But don’t let this deter you from consuming it; many studies suggest drinking anywhere from two to 10 cups daily in order to experience the greatest health benefits.

What is Green Tea Extract?

Green tea extract is an in-demand health supplement, acquired from the leaves of Camellia sinensis. It’s created by infusing green tea leaves into a solvent to isolate the beneficial bioactive components found within its foliage.

Green tea is filled with naturally occurring antioxidants, including polyphenols, catechins, and epigallocatechin gallate (EGCG), that have been scientifically proven to bring about countless health advantages. From decreasing inflammation and quenching free radicals to defending against oxidative damage which can lead to severe illnesses – these potent antioxidants offer remarkable protection for your body.

Green Tea ExtractIt is lauded for its ability to assist in weight loss. Studies have demonstrated that the bioactive components of green tea can increase metabolic rate and fat burn, which are essential elements when it comes to maintaining a healthy body mass index.

On top of that, regular consumption may help decrease hunger pangs and improve insulin sensitivity – both important factors in staying trim!

Aside from weight loss, green tea extract powder may have an array of other advantages as well. Studies indicate that it has the potential to enhance brain function, decrease your likelihood of certain types of cancer, lower blood sugar levels, and better cardiovascular health.

Green tea extract is offered in a host of forms, from capsules and powders to liquid extracts. Of course, when taken as prescribed it is generally safe for the majority; though in certain cases individuals may experience adverse reactions such as stomach discomfort, headaches, or insomnia.

All in all, green tea extract is a sought-after and promising health supplementation with numerous potential benefits. Still, as with any supplementation, it’s imperative to consult your healthcare provider before incorporating it into your daily regimen – particularly if you’re pregnant or nursing, or taking prescribed medications.

Best 7 Green Tea Supplement Brands in 2023 Review

Zhou Green Tea Extract


Frustrated with expensive, low-quality supplements, Zhou Nutrition was established in 2014 to offer a more accessible solution. This Utah-based company uses Good Manufacturing Processes (GMP) and sources their components from all over the world where they grow best.

They test both ingredients and finished products twice for assured quality—though it’s unclear whether this is done internally or not. In any case, after leaving the factory everything has been validated at least two times!


  • Low caffeine content
  • Gluten-free, vegan, and non-GMO
  • Made with strict cGMP standards
  • Available in stores and online
  • 60-day money-back guarantee


  • Unclear who tests their products
  • Capsules also contain additives (rice flour and magnesium stearate)
  • No international shipping

Their Green Tea Extract is a nutritionally dense supplement that won’t wreck your concentration. One capsule contains 500mg of green tea extract with 98% polyphenols and 50% EGCG, making it one of the most potent extracts on our list.

Each serving contains up to 15mg of caffeine, which is about as much as you’d find in one cup of brewed green tea with five times the polyphenols.

It includes two additives (rice flour and magnesium stearate), but these are common, safe, and help keep your extract shelf-stable. And with 120 servings in one bottle, you’ll be set for four months or more for less than $20.

VitaMonk MATCHAMAX™ Organic


MATCHAMAX™ Organic Japanese Matcha Capsules are a convenient and effective way to enjoy the numerous health benefits of matcha green tea. Matcha has been used for thousands of years for its extraordinary health benefits, including supporting natural energy, promoting relaxation and calmness, and providing powerful antioxidant properties.

The matcha in these capsules contains L-Theanine, which promotes a state of calmness and relaxation while supporting cognitive functions, and catechins, which are extremely potent antioxidants.

This remarkable, naturally occurring substance from Japan has been scientifically demonstrated to support:

  • Weight loss through fat oxidation boosted metabolism and calorie burning
  • Enhanced energy – without the jitters
  • Mental focus, calm & relaxation
  • Management of DNA damage (through extraordinary antioxidant properties)

Thanks to its all-natural caffeine and L-Theanine content, MATCHAMAX™ Organic Japanese Matcha Capsules for energy without the jitteriness typically associated with caffeine.

These capsules are made with high-quality organic matcha green tea and contain no artificial fillers, making them a safe and effective way to supplement your diet.



With 120 capsules in each container, Zenwise offers a potent and unrivaled green tea extract with unbeatable benefits. Each single-serving capsule provides 725mg of polyphenols content at 95%, as well as 50% EGCG – one of the most powerful extracts on the market today.


  • Contains added vitamin C for additional health boosts
  • Low caffeine content
  • No aftertaste
  • Manufactured with cGMP guidelines
  • Tests all finished products in-house
  • Strong customer service
  • 100% lifetime money-back guarantee
  • Free shipping to the contiguous U.S.


  • Contains additives (magnesium stearate and silicon dioxide)
  • No international shipping through their website
  • No third-party testing

Even though some products may have higher polyphenol concentrations, no other product can match Zenwise’s uncompromising potency. Each serving provides an invigorating 60mg of Vitamin C as Ascorbic Acid for a potent immune system boost and antioxidant protection.

With only 15mg of caffeine, that’s roughly equivalent to one cup of brewed green tea – giving you just the right amount without feeling overly energized.



Horbaach’s EGCG Green Tea Extract Pills are a non-GMO and gluten-free supplement that packs an antioxidant punch. It is standardized to contain 95% polyphenols, 75% catechins, and 45% EGCG – making it the ideal source of these powerful substances for those seeking healthful benefits.

Horbäach is dedicated to providing you with the purest and most potent ingredients, as each capsule of their EGCG Green Tea Extract Pills has been carefully formulated and laboratory-tested for superior quality.

Additionally, all-natural aspects are taken into consideration such as its gluten-free, wheat-free, and yeast-free status along with being free from milk lactose soy artificial colorings and flavorings. If your search for a high-standard green tea extract supplement ends here – look no further than Horbäach’s offering.

Life Extension – Best Decaffeinated Green Tea Extract

Life Extension

Despite the bumpy road in the past, Life Extension without caffeine has exceeded expectations with its Decaffeinated Mega Green Tea Extract. The supplement provides all of the benefits that it promises, not FDA-approved. This time around, you can trust in Life Extension’s word when they tell you this extract will make a difference!

Experience the optimal benefits of green tea with each bottle containing 100 capsules packed with 725mg extract, standardized at 98% polyphenols and 45% EGCG.


  • Robust dose
  • Zero caffeine
  • One-year money-back guarantee
  • Bulk savings deals


  • Not the highest EGCG-to-polyphenol ratio
  • Unclear who verifies their formula and batch testing

Each serving (one capsule per day) contains up to 327mg of EGCG, granting you access to catechin’s advantages while remaining risk-free from any side effects. In addition, the caffeine is removed during the production of green tea extract, allowing those with sensitivity to still receive the advantages of green tea without any worrying.

Now Green Tea Extract


NOW is a powerhouse of health and wellness products. From monk fruit granules to Extract, they have it all! We will focus on their pure Extract capsules that are packed with 400mg in every capsule – the perfect daily dose for your well-being. Their EGCG supplement is also great, but we think you’ll love their extract even more.

Though NOW doesn’t provide a direct disclosure of the polyphenol breakdown, they do include at least 40% catechins in their supplement. Most likely these are EGCG since it is the most commonly found catechin in green tea; however, there isn’t any distinct identification given.


  • Two size options allow for some bulk savings
  • Added vitamin C for an antioxidant boost
  • The 30-day window for refunds of unopened containers
  • Available in many major brick-and-mortar health stores
  • Extremely high-quality testing and manufacturing processes
  • Free shipping on orders over $50 in the contiguous United States


  • Lack of ingredient transparency
  • Low dose
  • No subscription savings option
  • You’re responsible for paying for return shipping

Reportedly, this supplement has up to 32mg of caffeine – which is near the higher end of other supplements’ concentrations but still equivalent to a cup of green tea.

It also contains 60mg of Vitamin C in ascorbic acid form; an added advantage that bolsters immunity and provides antioxidants. However, its lack of transparency leaves something to be desired.

Nature’s Bounty

Nature's Bounty

Nature’s Bounty is a dietary supplement that can provide your heart health with the support and antioxidant benefits it needs. Each capsule contains 315mg of green tea extract, including EGCG – a natural antioxidant found in green tea leaves.

By taking this herbal health supplement daily, you can promote optimal wellness yourself. With its wealth of beneficial properties, green tea has been a beloved health tonic for centuries.

While the FDA has yet to evaluate this product specifically, it is produced by an acclaimed brand that supplies quality dietary supplements and has done so for years.

Benefits of Green Tea

Green tea has been consumed for thousands of years and is known for its potential health benefits. The following table summarizes some of the key benefits of green tea, along with the research supporting them.

Weight lossIt may increase metabolism and
fat oxidation, leading to weight loss.
It may also help reduce appetite and improve
insulin sensitivity.
Brain functionThe active compounds in green tea may improve
brain function and reduce the risk of
neurological diseases.
Cancer riskGreen tea consumption has been associated with
reductionreduced risk of certain types of cancer, such
as breast, prostate, and colorectal cancer.
Lower bloodGreen tea may help lower blood pressure and
pressureimprove cholesterol levels, both of which are
important for heart health.
ImprovedIt may help improve insulin sensitivity,
insulinwhich is important for blood sugar control.
Anti-Green tea’s antioxidants may help protect
inflammatoryagainst inflammation, which can contribute to
propertieschronic diseases.

While the promising results of research examining green tea’s potential health benefits are noteworthy, more studies need to be conducted in order to confirm these effects.

Moreover, when it comes to individual success stories with this natural remedy, they may differ depending on age, lifestyle, and well-being status.

Nevertheless consuming green tea as part of a balanced diet and active lifestyle may offer quite the spectrum of likely advantages!

Side Effects. Who Should Avoid Green Tea Extract?

While green tea extract is generally safe when taken in reasonable quantities, some people may experience unpleasant side effects or reactions. Here are some of the potential side effects and who should avoid green tea extract:

Side EffectWho Should Avoid Green Tea Extract
InsomniaIndividuals who are sensitive to caffeine or have trouble sleeping should be cautious with green tea extract.
Stomach upsetLarge amounts of green tea extract may cause stomach upset or digestive issues, especially on an empty stomach.
HeadachesSome individuals may experience headaches or migraines as a result of green tea extract consumption.
Liver toxicityHigh doses of green tea extract may be linked to liver toxicity in rare cases, particularly when combined with alcohol or certain medications.
Blood thinningIt may increase the risk of bleeding in individuals taking blood-thinning medications.
Iron absorptionIt may reduce the absorption of iron, so individuals with iron deficiency anemia should be cautious with supplementation.

Green Tea Extract vs Green Tea

When it comes to tea, nothing surpasses green tea. Loaded with nutrients, drinking this beverage offers a plethora of health benefits – yet its extract form is even more powerful.

Green Tea Extract vs Green TeaContaining higher levels of catechins compared to regular green tea, extracts are ideal for cholesterol control and weight management.

Undoubtedly the best type of tea out there; green tea extract should be your go-to drink for ultimate vitality.

Despite the fact that taking too many green tea supplements can lead to liver disease, this should not discourage you from consuming them.

After all, the extracted version of green tea has numerous benefits and is definitely worth it.

Be sure to take your dosage responsibly in order to get maximum results while remaining healthy and safe at the same time.

Here are the top drinking green teas:

  • Best Overall: Rishi Tea Sencha Tea
  • Best Budget: Bigelow Classic
  • Best On-The-Go: Pique Tea Organic Jasmine
  • Best Matcha Powder: Encha Organic Matcha Green Tea
  • Best Organic: Yogi Tea
  • Best Tasting: Kusmi Tea Ginger Lemon
  • Best Versatile Matcha Powder: Jade Leaf Organic Culinary Grade Matcha
  • Best Loose Leaf: Vahdam Teas Himalayan
  • Best Bottled: Ito En Tea Unsweetened Oi Ocha Green

What to Look for in Green Tea

  • Green tea extract in pill or liquid form has risks including side effects such as constipation, stomach problems, increased blood pressure, and liver damage.
  • Stick to green tea beverages as they are generally safe.
  • There are many green tea varieties with different flavor profiles.
  • Jasmine and Sencha green teas are popular and have balanced vegetal and sweet flavors with a smooth finish.
  • Matcha has a bold flavor with a higher caffeine and antioxidant content.
  • Caffeine affects everyone differently, so take note of what suits you best.
  • Matcha has higher caffeine content than other green teas, and brewing tea for a longer duration increases the caffeine content.
  • Choose products with green tea or green tea powder as the only ingredient.
  • Beware of packaged green tea products with high amounts of added sugar. Aim for products with less than 5 grams of sugar per serving.
  • Look for certified organic products for quality and ethical considerations.
  • Consider Fair Trade products or products with a transparent sourcing policy.

DosageHow Much Caffeine is in Green Tea?

Green tea contains varying amounts of caffeine, with a regular 8-ounce cup providing between 20 to 50 milligrams.

Though this is less than the 80-100 milligrams found in coffee, matcha typically provides about 70 milligrams per teaspoon of powder—which makes for a more powerful pick-me-up when served as an 8-ounce cup!

The FDA confirms that up to 400 milligrams of caffeine daily are safe for healthy adults, which works out to around four cups of coffee or eight cups of green tea per day.

Nevertheless, it’s essential to remember that everyone has a different tolerance level when it comes to caffeine – so pay attention to how your body feels and adjust your intake accordingly if need be.

Frequently Asked Questions

Are Green Tea Capsules as Effective as the Tea?

Investigations have proven that catechins in green tea supplements are as effective – if not more so – than those found in brewed green tea. In fact, it is absolutely possible to obtain functionally similar levels of catechins from either capsule or brewed sources within 24 hours.

Are Green Tea Pills Worth It?

Studies have demonstrated that green tea extract can be a powerful tool for weight loss, blood sugar control, disease prevention, and exercise recovery. Moreover, it has also been linked to healthy skin and liver function; lower levels of fat in the bloodstream; regulated blood pressure; as well as improved cognitive health.

Which Green Tea is Healthiest?

Matcha green tea has earned a reputation as one of the most beneficial varieties out there, due to its unique way of preparation: Instead of using only the leaves, you actually consume the whole leaf.

When is the Best Time to Take Green Tea Supplements?

It is generally in the morning or early afternoon, as green tea contains caffeine and may interfere with sleep if taken too close to bedtime.

Does Green Tea Help With Weight Loss?

Recent studies have uncovered a potential link between green tea consumption and modest weight loss, as well as fat oxidation. While the positive effects of EGCG and caffeine can’t be ignored, additional research is needed to fully substantiate these claims.

Nevertheless, enjoying green tea as part of a balanced diet can be beneficial in terms of offsetting the consumption of sugary drinks.

It is important to note that any green tea-based beverages differ from supplements containing the extract, which have not been approved by the CDC for weight loss and may provoke adverse effects.

Conclusion. Which Green Tea Brand is Best?

Top 3 ProductsAll these green tea extract products offer various benefits and are sourced from reputable companies.

Best overall is Zhou Nutrition’s stands out for its potency and low caffeine content, with 98% polyphenols and 50% EGCG per capsule.

VitaMonk’s MATCHAMAX™ Organic Japanese Matcha Capsules provide all-day natural energy without the jitters typically associated with caffeine.

Additionally, Zenwise offers a potent green tea extract with added vitamin C for an immune system boost and antioxidant protection.

Each product has its unique set of pros and cons, so it’s essential to choose one that best fits your dietary needs and lifestyle.