Green tea is rich in catechin antioxidants, especially epigallocatechin gallate (EGCG), which may support heart health, reduce inflammation, and aid cognitive function.
Including Green tea extract supplements in your daily routine may provide active compounds like EGCG in a concentrated form without bitterness or excess caffeine.
In this blog post, you'll find 10 best green tea extract supplements in 2025. We have also broken down their ingredients, benefits, and potential drawbacks to help you decide if they are worth considering or not.
As per the official website, NutraBio Green Tea Extract contains 95% polyphenols and 75% catechins. It could help support your body's natural defenses by neutralizing harmful free radicals.
NutraBio claims that its Green Tea Extract is produced in a GMP-certified facility in the United States under strict quality control standards. The formula is vegetarian, certified Kosher and Halal, and is tested to be free from BSE and TSE contamination.
PureBulk Green Tea Extract Powder could help support heart health, brain function, fat metabolism, exercise recovery, and skin appearance with the help of its antioxidant properties.
As per the official website, PureBulk Green Tea Extract may help neutralize free radicals, reduce oxidative stress, and support blood flow by enhancing nitric oxide levels. It may also aid in weight management by increasing thermogenesis.
The makers state that PureBulk Green Tea Extract might support endurance and reduce exercise-induced damage. It could also help maintain elasticity and reduce inflammation. With less than 2% caffeine, the powder format allows flexible dosing. However, make sure not to exceed PureBulk Green Tea Extract's dosage of 1000 mg daily due to potential liver or kidney stress with prolonged high use.
Life Extension claims that their Decaffeinated Mega Green Tea Extract provides concentrated green tea benefits without the stimulating effects of caffeine. Decaffeinated Mega Green Tea Extract provides 725 mg of green tea per capsule. It could also support cellular health, cardiovascular function, and metabolic balance.
As per the official website, Decaffeinated Mega Green Tea Extract may help protect your body from oxidative stress by targeting free radicals, which are known to damage cells and accelerate aging.
One Decaffeinated Mega Green Tea Extract capsule contains a maximum of 3.6 mg of caffeine and is suggested by the makers to be taken once daily on an empty stomach.
ZHOU Green Tea Extract provides 500 mg of green tea extract per capsule, which may support healthy metabolic function and enhanced energy levels. Its antioxidant content may help defend your body against oxidative stress. Catechins found in ZHOU's Green Tea Extract may help maintain healthy skin and nails, further promoting a refreshed and youthful appearance. It could also help you stay productive and alert throughout the day.
BulkSupplements Green Tea Extract Capsules provide 500mg of green tea extract per capsule. It could also help protect your cells from damage caused by oxidative stress. According to the makers, BulkSupplements Green Tea Extract may contribute to increased fat oxidation and a more active metabolism, which can support calorie burning. It might also help promote alertness and focus. BulkSupplements mentions that Green Tea Extract formulation can support immune function by balancing free radicals and reducing inflammation.
As per its official site, Zazzee Green Tea Extract offers 300 mg of green tea extract per capsule, derived from a concentrated 20:1 extract. Made with 100% vegan ingredients, Zazzee Green Tea Extract is free from artificial additives, gluten, soy, dairy, and GMOs. As per the official website, Zazzee Green Tea Extract is manufactured in an FDA-registered facility following Good Manufacturing Practices (GMP) and undergoes third-party testing for purity and potency, which may help ensure quality and safety standards.
Nature's Nutrition Green Tea Extract could provide a smooth and sustained energy boost, promoting mental alertness without the sharp spikes or crashes often associated with stimulants. As per the makers, Nature's Nutrition Green Tea Extract provides 1000 mg of green tea extract per two capsules, which may help prevent the harmful effects of free radicals. Nature's Nutrition Green Tea Extract could also help enhance your focus and physical performance throughout the day by supporting cellular health.
As per the official website, Drops Of Nature Green Tea Extract comes in a liquid format and may support your body's defense against oxidative stress and help maintain vitality. It offers a mild lift in energy without overstimulation, which may potentially support sustained focus the entire day. Its pineapple-tangerine flavor makes it pleasant to take on its own or mix into beverages or meals. The makers suggest that adults and children over four can take Drops Of Nature Green Tea Extract up to 2mL daily, either directly or by adding it to coffee, salads, or shakes.
Xymogen Green Tea 600 is a concentrated, water-extracted green tea formula that may support antioxidant activity and normal gene signaling, which can help protect cells from oxidative stress. It could also help promote balanced immune and endocrine system functions and support your body's natural detoxification processes. According to the official website, Xymogen Green Tea 600 is manufactured under strict quality control standards and should be stored in a cool, dry place with the seal intact.
Vital Nutrients claims that their Green Tea Extract may help maintain healthy cellular function. Each serving (two capsules) of Vital Nutrients Green Tea Extract provides 550 mg of green tea leaf extract, standardized to contain 90% polyphenol and 50% EGCG.
Vital Nutrients Green Tea Extract may also support cardiovascular health and help maintain cholesterol levels already within the normal range. The potent flavonoids in Vital Nutrient's green tea extract could contribute to a healthy immune response and assist your body's ability to manage inflammation effectively. The makers recommend taking 1 to 2 Vital Nutrients Green Tea Extract capsules two to three times daily.
Green tea extract supplements can inhibit the absorption of non-heme iron, the type found in plant-based foods, due to its high polyphenol content, particularly tannins. These compounds bind to iron molecules in your digestive tract and limit absorption. If your iron levels are healthy, this might not pose an issue. However, if you're iron-deficient, especially as a menstruating woman, vegetarian, vegan, or someone with chronic illness, long-term use of green tea extract supplements may worsen symptoms of anemia like fatigue, dizziness, weakness, and pale skin.
Taking Green Tea Extract supplements in high doses or on an empty stomach can irritate your GI tract. You may encounter symptoms such as nausea, bloating, cramping, and even vomiting. Catechins and caffeine in these supplements can cause these issues, as they can increase stomach acid and trigger discomfort, especially if you deal with acid reflux, gastritis, or ulcers. Green tea extract may also stimulate your gut, which may lead to diarrhea or frequent bowel movements in some people.
Caffeine in Green Tea Extract supplements can act as a stimulant and raise your heart rate. You might feel palpitations, fluttering, or even irregular beats, particularly if you're combining the extract with other stimulants like guarana or pre-workout formulas. People with heart conditions or anxiety are more likely to notice these effects. In some cases, Green Tea Extract supplements may also slightly elevate blood pressure, causing drowsiness or nausea.
Some people may experience headaches or dizziness after taking Green Tea Extract supplements, often due to caffeine and catechin interaction with the central nervous system. These symptoms may occur from vasoconstriction, dehydration (from caffeine's diuretic effect), or withdrawal if you suddenly stop taking it.
Life Extension provides a 365-day return period for refunds, exchanges, or replacements with a reason required. Drops Of Nature, Zazzee, and Zhou allow returns within 60 days, while NutraBio gives you 90 days to request a refund with no major limitations.
Purebulk accepts returns within 90 days for unopened items, and if opened, you'll only be refunded the cost of the smallest size sold, and return shipping isn't covered. Xymogen offers a 45-day satisfaction guarantee, but it only applies to purchases made through their exclusive Amazon distributor, Fortress Brand Wellness. To qualify for a refund, you must provide valid proof of purchase from that specific storefront.
Nature's Nutrition offers a 30-day return period, though details about opened items or shipping reimbursement aren't clearly stated.
BulkSupplements and Vital Nutrients limit returns to unopened products within 30 days. BulkSupplements does not refund shipping costs, and you'll need to cover return postage. Vital Nutrients requires preauthorization for returns, which adds an extra step to the process.
When evaluating green tea extract supplements, NutraBio leads with a Trustpilot rating of 4.9 from over 1,000+ reviews. The brand's focus on transparency and high-quality ingredients has earned it strong customer approval. Purebulk, with a 4.6 rating on Trustpilot from more than 5,700+ reviews, is also highly regarded for its effectiveness and value. Life Extension, receiving a 4.3 rating from 290+ reviews on Trustpilot, is a suitable choice for people looking for decaffeinated products.
Zhou has a 2.9 TrustPilot rating from 1,700+ reviews, indicating mixed customer feedback and possible concerns about product effectiveness. Similarly, BulkSupplements' Green Tea Extract holds a low 1.8 rating on Trustpilot, suggesting significant dissatisfaction with its performance or customer service. Both brands appear to have issues that could affect their reliability for consumers' trust. Vital Nutrients appears to have a claimed profile on TrustPilot. However, with a limited number of reviews, it is difficult to assess Vital Nutrients' credibility.
Brands such as Zazzee, Nature's Nutrition, Drops Of Nature, and Xymogen are not represented on Trustpilot, making it hard to evaluate their reputation. While they may still offer quality products, the lack of online reviews means potential buyers should seek information from other sources before deciding.
Purebulk Green Tea Extract offers the best value at $13.95 for 100g, making it a suitable option if you're fine with powder and want the low cost per serving. BulkSupplements follows closely with 180 capsules for $19.97. Life Extension's decaf version is available for $11.25 for 100 capsules, offering good value if you are avoiding caffeine. Zazzee's 150-capsule bottle at $23.97 provides good volume and strength for the price. NutraBio's 90 capsules at $14.99 provide a good balance between cost and quality.
Nature's Nutrition comes in at $18.42 for 120 capsules, while Drops Of Nature is priced at $19.99 for 60ml liquid, which some people may find pricier. ZHOU provides 120 capsules for $25.99 offering average value. Xymogen Green Tea 600, at $48.99 for 60 capsules, and Vital Nutrients, at $55.90 for 120, both come into premium pricing.
Green tea extract supplements may enhance fat metabolism, support cardiovascular and brain health, and provide antioxidant benefits. The research, as per the American Journal of Clinical Nutrition highlights that EGCG in green tea helps enhance fat oxidation while doing exercise and at rest. Green tea catechins may also improve cholesterol levels and reduce oxidative stress, as supported by findings in the Journal of the American Dietetic Association and research on LDL oxidation.
The 10 best green tea extract supplements discussed in this blog post feature standardized EGCG content, third-party testing, and clean ingredient profiles that may help you choose the one that aligns with your fitness goals. However, remember that high doses of above 800mg of green tea extract can cause digestive discomfort, nausea, reduced iron absorption, and increased heart rate.
Contact us at [email protected] or follow @leafsnap on Twitter! View our Privacy Policy.
