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Green Tea Alcohol-Free

Nature's Answer
4.6
★ ★ ★ ★ ★
(436 ratings)
Green Tea 665 mg
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Score59
A focused green tea liquid with weak value. Active-marker and caffeine details are missing is the main drawback.
How scoring works
Quantity:1 Liquid(s) • (15 servings)
Goals:
Anti-Aging
Metabolism Boost
Anti-Inflammatory Support

Score 59

A focused green tea liquid with weak value. Active-marker and caffeine details are missing is the main drawback.
How scoring works
$11.24($0.74 per serving)
Amazon
$ 14.08
iHerb
$ 11.24
Pure Formulas
$ 11.24
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Analysis

665 mg of leaf extract of green tea material provides a direct source of catechins that may support antioxidant defenses and normal metabolic signaling. A second 95 mg green-tea entry is listed, but no catechin or EGCG yield is provided.

Caffeine content is not stated, making stimulant exposure difficult to judge. Active-marker and caffeine details are missing prevents a fully confident comparison with better-characterized extracts.

The liquid format keeps the product focused and easy to fit into a routine. Alcohol-free delivery may appeal to tincture users, but the small bottle and weak value limit routine use.

Who is it for
  • Adults seeking concentrated green tea catechins
  • People comfortable with potentially caffeinated green tea
Best for
  • Green tea catechin intake
  • Antioxidant support
  • Metabolic-support routines

Pros

  • Provides 665 mg of leaf extract
  • Identifies EGCG or catechin markers
  • Offers weak value
  • Simple liquid format

Cons

  • active-marker and caffeine details are missing
  • Caffeine amount is not disclosed
  • No absorption-support ingredients
  • Narrow single-botanical scope

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.
  • Caffeine content is not disclosed, so caffeine-sensitive users cannot predict effects on sleep, heart rate, or anxiety.

Nutrient quality

60 Moderate impact

Green tea species is identified, but extract type, active markers, and standardization are missing. The extract weight may be meaningful, but missing EGCG and caffeine information prevents dose or value verification.

Ingredient transparency

65 High impact

Two green tea amounts are listed without explaining their relationship or active yield. No proprietary blend hides the listed active doses.

Customer satisfaction

65 Moderate impact

The supplied average is positive, with moderate response volume. Complaint patterns and purpose-related experiences are not supplied.

Value for money

44 Lower impact

The asking price is difficult to justify for the disclosed formula. Serving value is weak relative to the green tea support provided.

Report analysis

Goals

Anti-Aging
Anti-Aging
Impact
High effect
B- Goal FitC Strength of SupportC- CoverageA- Formula Quality
Green Tea · 95 mg

Green tea extract provides antioxidant, inflammatory, and metabolic signaling support relevant to healthy aging. Human evidence supports catechin-related cardiometabolic markers, but the product does not disclose EGCG or total catechin content.

The liquid delivers a substantial extract weight and avoids alcohol. Missing standardization prevents confirmation that the active polyphenol dose is strong enough for consistent effects.

Study evidence
Green Tea Supportive 9 studies
Metabolism Boost
Metabolism Boost
Impact
Moderate effect
A- Goal FitD- Strength of SupportD- CoverageA Formula Quality
Green Tea · 95 mg

Green tea extract is relevant to thermogenesis and fat oxidation, but its usefulness depends heavily on EGCG content. The total extract amount appears substantial while the key active yield remains unknown.

No EGCG percentage, caffeine amount, or absorption support is disclosed, which prevents a confident assessment of effective dosing. The lean liquid formula is coherent, but limited standardization leaves its metabolic contribution uncertain.

Study evidence
Green Tea Supportive 31 studies
Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
Moderate effect
A- Goal FitF Strength of SupportD CoverageB+ Formula Quality
Green Tea · 95 mg

Green tea extract is relevant to antioxidant defense and inflammatory signaling. The liquid format supplies a sizable extract amount, but two conflicting quantities appear in the provided data.

The label does not disclose EGCG yield, active-marker percentage, absorption support, or caffeine content. These omissions prevent confident assessment of effective exposure and stimulant suitability.

Study evidence
Green Tea Mixed 16 studies

Ingredients

IngredientAmount per serving
Green Tea (Camellia sinensis) leaf extract
665 mg
Green Tea (Camellia sinensis) leaf extract
95 mg
Gluten Free Adults 18–50 Kosher
Report overview
Green Tea · 665 mg OverallScore8
F Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value

The liquid provides a sizable amount of green tea extract but does not disclose EGCG yield. No active-marker percentage, absorption support, or caffeine amount is stated. Effective-dose suitability and value per active EGCG therefore cannot be verified.

View ingredientView products
Loading alternative details
84 Performance

EGCg Green Tea Extract 400 mg

NOW
<p>Compared with the original, it keeps the green-tea focus and retains relevant support for anti-aging and skin health. A potent, decaffeinated EGCG dose provides focused antioxidant and metabolic support with very good long-term value. Concentrated green tea extract can stress the liver in susceptible people, especially when taken fasting, so use with food and avoid it with liver disease.</p>
84 Performance

Green Tea Extract 500 mg

Source Naturals
<p>Compared with the original, it keeps the green-tea focus and retains relevant support for anti-aging and skin health. A substantial green tea extract amount provides focused botanical support. Value is favorable after considering dose quality and formula focus.</p>
80 Performance

Green Tea

Jarrow Formulas
<p>Compared with the original, it keeps the green-tea focus and retains relevant support for anti-aging and skin health. A concentrated green-tea extract identifies catechins, polyphenols, and EGCG, supporting substantial antioxidant exposure. A high-EGCG extract may cause nausea or rare liver injury, particularly when taken fasting.</p>
84 Budget

EGCg Green Tea Extract 400 mg

NOW
<p>It lowers recurring cost compared with the original while staying in the same green-tea collection. A potent, decaffeinated EGCG dose provides focused antioxidant and metabolic support at very good value. Concentrated green tea extract can stress the liver in susceptible people, especially when taken fasting, so use with food and avoid it with liver disease.</p>
84 Budget

EGCg Green Tea Extract

Protocol For Life Balance
<p>It lowers recurring cost compared with the original while staying in the same green-tea collection. A decaffeinated green-tea extract clearly identifies a substantial EGCG and catechin profile. A high-EGCG extract may cause nausea or rare liver injury, particularly when taken fasting.</p>
79 Budget

Decaffeinated Mega Green Tea Extract

Life Extension
<p>It lowers recurring cost compared with the original while staying in the same green-tea collection. Clear decaffeination and a measured EGCG amount make the active profile easy to understand. The 725 mg dose remains unusually high and may stress the liver, especially when taken fasting or used by someone with liver disease.</p>
76 Value

Mega Green Tea Extract

Life Extension
<p>It pairs a lower recurring cost with the same green-tea collection, supporting a practical value case against the original. A highly concentrated EGCG dose offers low active cost but exceeds the preferred routine range. High-dose green tea extract can stress the liver, especially when taken fasting, so avoid it with liver disease and use only with appropriate supervision.</p>
77 Value

Green Tea Extract

ZHOU
<p>It pairs a lower recurring cost with the same green-tea collection, supporting a practical value case against the original. A concentrated green-tea extract identifies catechins, polyphenols, and EGCG, supporting substantial antioxidant exposure. A high-EGCG extract may cause nausea or rare liver injury, particularly when taken fasting.</p>
73 Value

Green Tea

Paradise
<p>It pairs a lower recurring cost with the same green-tea collection, supporting a practical value case against the original. A straightforward green-tea extract provides a moderate total amount at low serving cost. Undisclosed caffeine may cause jitteriness or sleep disruption in sensitive users.</p>
Report alternatives

Sources

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

  1. Effects of green tea or green tea extract on insulin sensitivity and glycaemic control in populations at risk of type 2 diabetes mellitus: a systematic review and meta-analysis of randomised controlled trials.
    Wang X; Tian J; Jiang J; Li L; Ying X; Tian H; Nie M · Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2015
    Meta-analysis510 participants7 studies pooledMetabolism Boost forGreen Tea
  2. Metabolic response to green tea extract during rest and moderate-intensity exercise.
    Hodgson AB; Randell RK; Boon N; Garczarek U; Mela DJ; Jeukendrup AE; Jacobs DM · The Journal of nutritional biochemistry · 2013
    Randomized trial27 participantsMetabolism Boost forGreen Tea
  3. 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
  4. 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
  5. 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
  6. Metabolic response to epigallocatechin-3-gallate in relapsing-remitting multiple sclerosis: a randomized clinical trial.
    Mähler A; Steiniger J; Bock M; Klug L; Parreidt N; Lorenz M; Zimmermann BF; Krannich A; Paul F; Boschmann M · The American journal of clinical nutrition · 2015
    Randomized trial18 participantsMetabolism Boost forGreen Tea
  7. Effect of Acute and Chronic Dietary Supplementation with Green Tea Catechins on Resting Metabolic Rate, Energy Expenditure and Respiratory Quotient: A Systematic Review.
    Rondanelli M; Riva A; Petrangolini G; Allegrini P; Perna S; Faliva MA; Peroni G; Naso M; Nichetti M; Perdoni F; Gasparri C · Nutrients · 2021
    Systematic review499 participants15 studies pooledMetabolism Boost forGreen Tea
  8. Epigallocatechin-3-gallate and postprandial fat oxidation in overweight/obese male volunteers: a pilot study.
    Thielecke F; Rahn G; Böhnke J; Adams F; Birkenfeld AL; Jordan J; Boschmann M · European journal of clinical nutrition · 2011
    Randomized trial10 participantsMetabolism Boost forGreen Tea
  9. Effects of timing of acute catechin-rich green tea ingestion on postprandial glucose metabolism in healthy men.
    Takahashi M; Ozaki M; Miyashita M; Fukazawa M; Nakaoka T; Wakisaka T; Matsui Y; Hibi M; Osaki N; Shibata S · The Journal of nutritional biochemistry · 2020
    Randomized trial17 participantsMetabolism Boost forGreen Tea
  10. Time-of-day-dependent effects of a green tea extract on postprandial glycemia and insulinemia in healthy adults: a randomized, controlled, double-blind, cross-over intervention.
    Sulaimani N; Rosbotham EJ; Warnock R; Polzella L; Judowski R; Nicolotti L; Houghton MJ; Williamson G; Bonham MP · Food & function · 2025
    Randomized trial14 participantsMetabolism Boost forGreen Tea
  11. 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
  12. 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
  13. Can teatime increase one's lifetime?
    Nakachi K; Eguchi H; Imai K · Ageing research reviews · 2003
    Cohort studyAnti-Aging forGreen Tea
  14. 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
  15. 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
  16. 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
  17. 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 forGreen Tea
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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