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Decaffeinated Mega Green Tea Extract

Life Extension
4.6
★ ★ ★ ★ ★
(5497 ratings)
Green Tea 725 mg
Product Image
Score79
A concentrated decaffeinated green tea extract with named markers and good value. Ambiguous marker amounts keep transparency from being complete.
How scoring works
Quantity:100 Capsule(s) • (100 servings)
Goals:
Heart Health
Anti-Aging
Anti-Inflammatory Support

Score 79

A concentrated decaffeinated green tea extract with named markers and good value. Ambiguous marker amounts keep transparency from being complete.
How scoring works
$22.50($0.22 per serving)
Walmart
$ 22.50
Vitacost
$ 22.50
Vitacost
$ 22.53
iHerb
$ 22.50
Pure Formulas
$ 22.50
Amazon
$ 22.50
Report prices

Analysis

The formula provides a 725 mg decaffeinated green tea extract and identifies both EGCG and polyphenols. That disclosure gives useful direction, but the relationship between total material and marker amounts remains ambiguous.

Explicit decaffeination improves predictability for stimulant-sensitive users, though trace caffeine may remain. No dedicated catechin-delivery technology or complementary nutrient is listed.

One capsule and good value make the product practical for users seeking a concentrated extract. The formula is narrow, and the high extract amount calls for deliberate use with food rather than stacking several green tea products.

Who is it for
  • Adults seeking a high-strength green tea extract
  • People who prefer explicitly decaffeinated catechins
Best for
  • Green tea polyphenol intake
  • Antioxidant support
  • Metabolic-support routines

Pros

  • Large green tea extract amount
  • Names EGCG and polyphenols
  • Offers good value
  • One-capsule serving

Cons

  • Marker amounts are presented ambiguously
  • Trace caffeine may remain
  • No absorption-support technology
  • Single-pathway formula

Warnings

  • Concentrated green tea extract has occasionally been linked with liver injury, particularly when taken fasting; stop use for dark urine, jaundice, or persistent upper-abdominal pain.
  • Green tea catechins can reduce non-heme iron absorption, so people using oral iron should separate the servings.
  • Decaffeinated extract can still contain trace caffeine, which may affect highly sensitive users.

Nutrient quality

70 High impact

A decaffeinated extract with measured EGCG provides strong active and stimulant identity. Clear decaffeination is helpful, but the excessive EGCG amount remains the main limitation.

Ingredient transparency

80 High impact

EGCG and polyphenol entries share one amount, making their relationship somewhat ambiguous. No proprietary blend hides the listed active doses.

Customer satisfaction

71 High impact

The supplied average is favorable, with very large response volume. Complaint patterns and purpose-related experiences are not supplied.

Value for money

94 Highest impact

Formula quality generally supports the asking price despite some limitations. Each serving offers very good practical value for its useful active dose.

Report analysis

Goals

Heart Health
Heart Health
Impact
Highest effect
B- Goal FitA Strength of SupportC+ CoverageA+ Formula Quality
Green Tea · 725 mg

The decaffeinated extract may support vascular and lipid health through tea polyphenols. It provides 725 mg of decaffeinated green tea extract standardized to EGCG and polyphenols for the stated purpose.

Its cardiovascular role remains supportive rather than a broad or primary heart intervention. Concentrated EGCG can rarely injure the liver, especially when taken fasting.

Study evidence
Green Tea Supportive 84 studies
Anti-Aging
Anti-Aging
Impact
High effect
B- Goal FitB- Strength of SupportC- CoverageA Formula Quality
Green Tea · 725 mg

Decaffeinated green tea extract provides polyphenol and EGCG support for oxidative stress, inflammation, and metabolic health. Human evidence supports several risk markers, but it does not establish broad slowing of biological aging.

The 725 mg extract amount is substantial, though repeated EGCG and polyphenol entries do not state the actual amount of each marker. Decaffeination avoids a stimulant burden.

Study evidence
Green Tea Supportive 9 studies
Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
High effect
B Goal FitD+ Strength of SupportD+ CoverageA+ Formula Quality
Green Tea · 725 mg

EGCG directly supports antioxidant and inflammatory-signaling pathways, and the extract clearly discloses a very concentrated amount. Human evidence supports green-tea catechins, but the 725 mg EGCG serving exceeds the preferred routine range.

Decaffeination removes a common stimulant concern, but no absorption-enhancing delivery is included. High-dose green tea extract may raise liver-injury risk, especially when taken on an empty stomach.

Study evidence
Green Tea Mixed 16 studies
Metabolism Boost
Metabolism Boost
Impact
Moderate effect
C+ Goal FitD Strength of SupportF CoverageA+ Formula Quality
Green Tea · 725 mg

Decaffeinated EGCG may support fat oxidation and metabolic signaling. Removing caffeine improves stimulant tolerance but also weakens the best-supported thermogenic combination.

The EGCG amount is clearly disclosed but exceeds the preferred routine range. High-dose green tea extract may cause nausea and, rarely, liver injury, especially when taken fasting.

Study evidence
Green Tea Supportive 31 studies
Skin Health
Skin Health
Impact
Moderate effect
C+ Goal FitD Strength of SupportD- CoverageB+ Formula Quality
Green Tea · 725 mg

Decaffeinated green tea may support antioxidant and photo-protective skin defenses without stimulant exposure. The very high stated EGCG amount is unnecessary for routine skin support and does not address structure or hydration.

Decaffeination and active markers are disclosed, but no absorption-enhancing delivery is included. A 725 mg EGCG serving may raise liver-injury risk, especially when taken fasting, despite the lack of caffeine.

Study evidence
Green Tea Supportive 37 studies
Cognitive Support
Cognitive Support
Impact
Moderate effect
D- Goal FitC+ Strength of SupportF CoverageB+ Formula Quality
Green Tea · 725 mg

Decaffeinated green tea provides antioxidant support but little direct help with attention or memory. The extract names EGCG and polyphenols without clearly separating their active yields.

Removing caffeine improves stimulant tolerance but also removes the clearest short-term cognitive mechanism. Concentrated green tea extract may cause liver injury in susceptible users, especially when taken on an empty stomach.

Study evidence
Green Tea Supportive 32 studies

Ingredients

IngredientAmount per serving
Green Tea decaffeinated extract (EGCG, Polyphenols)
 725 mg
Gluten Free Adults 18–50
Report overview
Green Tea (EGCG, Polyphenols) · 725 mg OverallScore81
B Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyA+ Value

The decaffeinated extract discloses 725 mg EGCG at a very low cost per active target. Its dose exceeds the preferred range despite clear stimulant labeling. No absorption-enhancing delivery technology is included.

View ingredientView products
Loading alternative details
84 Performance

EGCg Green Tea Extract

Protocol For Life Balance
<p>EGCg Green Tea Extract provides a clearly identified, decaffeinated 400 mg EGCG and catechin profile. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, concentrated catechins still warrant taking it with food.</p>
78 Performance

Ageless Cell

Life Extension Geroprotect
<p>Ageless Cell combines decaffeinated EGCG with meaningful N-acetyl-L-cysteine, natural vitamin E, and tocotrienols. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, its broad formula carries a higher serving cost.</p>
74 Performance

Green Tea Phytosome

Thorne
<p>Green Tea Phytosome uses a phospholipid phytosome that may improve absorption of its green-tea extract. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, EGCG yield and caffeine status are not provided.</p>
84 Budget

EGCg Green Tea Extract 400 mg

NOW
<p>EGCg Green Tea Extract 400 mg lowers the serving cost and delivers a focused, decaffeinated 400 mg EGCG formula with strong long-term value. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, highly concentrated green tea extract can still cause nausea or liver stress in susceptible users.</p>
80 Budget

Green Tea

Jarrow Formulas
<p>Green Tea lowers the serving cost and supplies a concentrated green-tea extract at a very low serving cost. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, the repeated marker amounts and missing caffeine detail make the true EGCG yield less certain.</p>
84 Budget

Green Tea Extract 500 mg

Source Naturals
<p>Green Tea Extract 500 mg lowers the serving cost and offers a simple 500 mg green-tea extract with favorable serving value. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, EGCG, polyphenol, and caffeine yields are not specified.</p>
84 Value

EGCg Green Tea Extract 400 mg

NOW
<p>EGCg Green Tea Extract 400 mg delivers a focused, decaffeinated 400 mg EGCG formula at a modest serving cost, creating a useful balance of formulation quality and value. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, highly concentrated green tea extract should be taken with food.</p>
80 Value

Pine Bark Extract 240 mg

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<p>Pine Bark Extract 240 mg pairs 100 mg EGCG with 240 mg pine bark proanthocyanidins for broader antioxidant coverage, creating a useful balance of formulation quality and value. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, caffeine status and marker percentages are not fully stated.</p>
79 Value

Green Tea Extract 400 mg

NOW
<p>Green Tea Extract 400 mg combines a substantial green-tea extract with 60 mg vitamin C at a very low serving cost, creating a useful balance of formulation quality and value. Compared with the original, it provides a more measured or more broadly supported approach than the original unusually high EGCG dose; however, separate EGCG and caffeine yields are not clearly disclosed.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Green tea and coffee intake and risk of cognitive decline in older adults: the National Institute for Longevity Sciences, Longitudinal Study of Aging.
    Shirai Y; Kuriki K; Otsuka R; Kato Y; Nishita Y; Tange C; Tomida M; Imai T; Ando F; Shimokata H · Public health nutrition · 2021
    Cohort study1,305 participantsAnti-Aging forGreen Tea
  2. Associations of green tea, coffee, and soft drink consumption with longitudinal changes in leukocyte telomere length.
    Sohn I; Shin C; Baik I · Scientific reports · 2023
    Cohort study1,952 participantsAnti-Aging forGreen Tea
  3. Can teatime increase one's lifetime?
    Nakachi K; Eguchi H; Imai K · Ageing research reviews · 2003
    Cohort studyAnti-Aging forGreen Tea
  4. Influences of tea consumption on self-rated health and life satisfaction among older adults: Evidence from the CLHLS.
    Zou M; Sun C; Yang M; Li C; Wang S; Zheng D; Wang J; Yu L; Sun L; Wang Y; Chen H; Zeng Y · PsyCh journal · 2025
    Cohort study78,345 participantsAnti-Aging forGreen Tea
  5. Double-blinded, placebo-controlled trial of green tea extracts in the clinical and histologic appearance of photoaging skin.
    Chiu AE; Chan JL; Kern DG; Kohler S; Rehmus WE; Kimball AB · Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] · 2005
    Randomized trial40 participantsAnti-Aging forGreen Tea
  6. The effects of green tea on acne vulgaris: A systematic review and meta-analysis of randomized clinical trials.
    Kim S; Park TH; Kim WI; Park S; Kim JH; Cho MK · Phytotherapy research : PTR · 2021
    Meta-analysis247 participants5 studies pooledAnti-Inflammatory Support forGreen Tea
  7. Green Tea Catechin Association with Ultraviolet Radiation-Induced Erythema: A Systematic Review and Meta-Analysis.
    Kapoor MP; Sugita M; Fukuzawa Y; Timm D; Ozeki M; Okubo T · Molecules (Basel, Switzerland) · 2021
    Meta-analysis100 participants6 studies pooledAnti-Inflammatory Support Skin Health forGreen Tea
  8. Efficacy of (-)-epigallocatechin gallate delivered by a new-type scaler tip during scaling and root planing on chronic periodontitis: a split-mouth, randomized clinical trial.
    Wang Y; Zeng J; Yuan Q; Luan Q · BMC oral health · 2021
    Randomized trial20 participantsAnti-Inflammatory Support forGreen Tea
  9. Camellia Sinensis Mouthwashes in Oral Care: a Systematic Review.
    Tafazoli A; Tafazoli Moghadam E · Journal of dentistry (Shiraz, Iran) · 2020
    Systematic review69 studies pooledAnti-Inflammatory Support forGreen Tea
  10. Skin photoprotection by green tea: antioxidant and immunomodulatory effects.
    Katiyar SK · Current drug targets. Immune, endocrine and metabolic disorders · 2004
    Narrative reviewAnti-Inflammatory Support forGreen Tea
  11. Safety and efficacy of cognitive training plus epigallocatechin-3-gallate in young adults with Down's syndrome (TESDAD): a double-blind, randomised, placebo-controlled, phase 2 trial.
    de la Torre R; de Sola S; Hernandez G; Farré M; Pujol J; Rodriguez J; Espadaler JM; Langohr K; Cuenca-Royo A; Principe A; Xicota L; Janel N; Catuara-Solarz S; Sanchez-Benavides G; Bléhaut H; Dueñas-Espín I; Del Hoyo L; Benejam B; Blanco-Hinojo L; Videla S; Fitó M; Delabar JM; Dierssen M; TESDAD study group · The Lancet. Neurology · 2017
    Randomized trial87 participantsCognitive Support forGreen Tea
  12. Association between tea consumption and risk of cognitive disorders: A dose-response meta-analysis of observational studies.
    Liu X; Du X; Han G; Gao W · Oncotarget · 2018
    Meta-analysis48,435 participants17 studies pooledCognitive Support forGreen Tea
  13. Investigating the Impact of Tea Consumption on Cognitive Function and Exploring Tea-Genetic Interactions in Older Adults Aged 65-105 Years: Findings from the 2002-2018 CLHLS Data.
    Yu L; Yang M; Ye KX; Li C; Zou M; Wang J; Yuan X; Zheng D; Sun C; Zhang Y; Feng Q; Maier AB; Sun L; Feng L; Wang Y; Chen H; Zeng Y · The journal of prevention of Alzheimer's disease · 2024
    Cohort study76,270 participantsCognitive Support forGreen Tea
  14. Consumption of green tea, but not black tea or coffee, is associated with reduced risk of cognitive decline.
    Noguchi-Shinohara M; Yuki S; Dohmoto C; Ikeda Y; Samuraki M; Iwasa K; Yokogawa M; Asai K; Komai K; Nakamura H; Yamada M · PloS one · 2014
    Cohort study490 participantsCognitive Support forGreen Tea
  15. Green Tea Consumption and the Risk of Incident Dementia in Elderly Japanese: The Ohsaki Cohort 2006 Study.
    Tomata Y; Sugiyama K; Kaiho Y; Honkura K; Watanabe T; Zhang S; Sugawara Y; Tsuji I · The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2018
    Cohort study13,645 participantsCognitive Support forGreen Tea
  16. Green tea catechins and blood pressure: a systematic review and meta-analysis of randomised controlled trials.
    Khalesi S; Sun J; Buys N; Jamshidi A; Nikbakht-Nasrabadi E; Khosravi-Boroujeni H · European journal of nutrition · 2015
    Meta-analysis13 studies pooledHeart Health forGreen Tea
  17. Effect of Green Tea on Blood Pressure in Healthy Individuals: A Meta-Analysis.
    Yıldırım Ayaz E; Dincer B; Mesci B · Alternative therapies in health and medicine · 2023
    Meta-analysis680 participants9 studies pooledHeart Health forGreen Tea
  18. Green tea extract reduces blood pressure, inflammatory biomarkers, and oxidative stress and improves parameters associated with insulin resistance in obese, hypertensive patients.
    Bogdanski P; Suliburska J; Szulinska M; Stepien M; Pupek-Musialik D; Jablecka A · Nutrition research (New York, N.Y.) · 2012
    Randomized trial56 participantsHeart Health forGreen Tea
  19. Green tea intake lowers fasting serum total and LDL cholesterol in adults: a meta-analysis of 14 randomized controlled trials.
    Zheng XX; Xu YL; Li SH; Liu XX; Hui R; Huang XH · The American journal of clinical nutrition · 2011
    Meta-analysis1,136 participants14 studies pooledHeart Health forGreen Tea
  20. Effects of green tea on lipid profile in overweight and obese women.
    Li A; Wang Q; Li P; Zhao N; Liang Z · International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition · 2024
    Meta-analysis1,818 participants15 studies pooledHeart Health forGreen Tea
  21. Effect of green tea on glucose control and insulin sensitivity: a meta-analysis of 17 randomized controlled trials.
    Liu K; Zhou R; Wang B; Chen K; Shi LY; Zhu JD; Mi MT · The American journal of clinical nutrition · 2013
    Meta-analysis1,133 participants17 studies pooledMetabolism Boost forGreen Tea
  22. Green tea extract ingestion, fat oxidation, and glucose tolerance in healthy humans.
    Venables MC; Hulston CJ; Cox HR; Jeukendrup AE · The American journal of clinical nutrition · 2008
    Randomized trial23 participantsMetabolism Boost forGreen Tea
  23. Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans.
    Dulloo AG; Duret C; Rohrer D; Girardier L; Mensi N; Fathi M; Chantre P; Vandermander J · The American journal of clinical nutrition · 1999
    Randomized trial10 participantsMetabolism Boost forGreen Tea
  24. A 60-Day Green Tea Extract Supplementation Counteracts the Dysfunction of Adipose Tissue in Overweight Post-Menopausal and Class I Obese Women.
    Rondanelli M; Gasparri C; Perna S; Petrangolini G; Allegrini P; Fazia T; Bernardinelli L; Cavioni A; Mansueto F; Oberto L; Patelli Z; Tartara A; Riva A · Nutrients · 2022
    Randomized trial28 participantsMetabolism Boost forGreen Tea
  25. Epigallocatechin gallate alleviates non-alcoholic fatty liver disease through the inhibition of the expression and activity of Dipeptide kinase 4.
    Yang M; Yan R; Sha R; Wang X; Zhou S; Li B; Zheng Q; Cao Y · Clinical nutrition (Edinburgh, Scotland) · 2024
    Randomized trialMetabolism Boost forGreen Tea
  26. Topical Polyphenon E in the treatment of external genital and perianal warts: a randomized controlled trial.
    Stockfleth E; Beti H; Orasan R; Grigorian F; Mescheder A; Tawfik H; Thielert C · The British journal of dermatology · 2008
    Randomized trial503 participantsSkin Health forGreen Tea
  27. Efficacy, safety and tolerability of green tea catechins in the treatment of external anogenital warts: a systematic review and meta-analysis.
    Tzellos TG; Sardeli C; Lallas A; Papazisis G; Chourdakis M; Kouvelas D · Journal of the European Academy of Dermatology and Venereology : JEADV · 2011
    Meta-analysis1,247 participants3 studies pooledSkin Health forGreen Tea
  28. Green tea polyphenols provide photoprotection, increase microcirculation, and modulate skin properties of women.
    Heinrich U; Moore CE; De Spirt S; Tronnier H; Stahl W · The Journal of nutrition · 2011
    Randomized trial60 participantsSkin Health forGreen Tea
  29. Efficacy of Epigallocatechin-3-Gallate in Preventing Dermatitis in Patients With Breast Cancer Receiving Postoperative Radiotherapy: A Double-Blind, Placebo-Controlled, Phase 2 Randomized Clinical Trial.
    Zhao H; Zhu W; Zhao X; Li X; Zhou Z; Zheng M; Meng X; Kong L; Zhang S; He D; Xing L; Yu J · JAMA dermatology · 2022
    Randomized trial180 participantsSkin Health forGreen Tea