Updated Jul 20, 2026 · by Felix Hesse · Verified by SAC team
Jul 20, 2026
Verified by SAC team
+10
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Jarrow Formulas Green Tea 500 mg, 100 capsules — from the Amazon listing
Best gentle / water-extracted
Jarrow Formulas · 500 mg water-extracted green tea, 50% polyphenols / 30% catechins · 100 ct

Jarrow Formulas Green Tea 500 mg Review

Jarrow's Green Tea is the gentle, water-extracted option and a genuinely sensible budget buy. It's a 500 mg water-extracted green tea at 50% polyphenols / ~30% catechins, which means a lower, milder EGCG dose than the high-standardization capsules — and for the liver-safety conscious, a dose that's hard to overdo is a feature, not a flaw. The brand's QC and water-extraction are reassuring, and the price per dose is strong. It ranks #6 because the lower EGCG means a more modest effect, and it carries a bit more caffeine (~40 mg) than the lightly-caffeinated picks. If you want a gentle, trustworthy, well-priced extract and aren't chasing maximum EGCG, it's an easy, honest choice — taken with food, and, as always, a modest fat-loss adjunct on top of a deficit, not a fat burner.

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▸ THE SCORE

How we built the SAC Product Score™8.1/10

EGCG standardization & dose35%7.8/10

A 500 mg water-extracted green tea at 50% polyphenols / ~30% catechins — a lower EGCG fraction than the 45-50% EGCG extracts, so a gentle, milder dose by design. The lowest-potency profile in the top half of the list, which is deliberate but caps this axis.

Purity & third-party testing30%8.6/10

A real strength: water-extracted (not solvent/acetone), non-GMO, gluten-free, with Jarrow's long-established QC and cGMP suppliers. The gentle extraction and trusted brand pedigree score well on purity.

Safety & caffeine clarity20%8/10

The milder, hard-to-overdo dose is inherently safety-friendly. It loses a little here only because it carries ~40 mg of caffeine — more than the lightly-caffeinated picks — and that caffeine should be read off the label and factored into your daily total.

Value (cost per active mg)15%8.6/10

Strong: a 100-count bottle from a respected brand at a low price per dose. Good value for a gentle, trustworthy extract, though the lower EGCG fraction means you're paying for a milder dose per capsule.

▸ SPECS

The product at a glance

Extract
500 mg water-extracted green tea (50% polyphenols, ~30% catechins)
EGCG
Lower EGCG fraction (~15% of catechins) — a gentle dose by design
Caffeine
~40 mg per capsule (water-extracted; read the label)
Form
Capsule (water-extracted green tea)
Size
100 capsules (100-day supply)
Quality
Water-extracted, non-GMO, gluten-free, cGMP suppliers
Price
Strong value — respected brand, 100-count, low cost per dose
▸ TRUTH CHECK

Marketing claims vs. reality

Verified

500 mg water-extracted green tea, standardized to 50% polyphenols / ~30% catechins.

The listing states a 500 mg water-extracted green tea standardized to 50% polyphenols with ~30% catechins. The water-extraction and standardization are disclosed and hold up; the EGCG fraction is correspondingly lower than a 45% EGCG extract.

Verified

Water-extracted (not solvent-extracted).

The listing specifies water extraction, consistent with Jarrow's positioning for this SKU. Accurate and a genuine differentiator for buyers who prefer a gentler process.

Verified

Non-GMO, gluten-free, cGMP quality.

The listing carries non-GMO and gluten-free labeling with Jarrow's cGMP-supplier QC, consistent with the brand's established reputation. Accurate as stated.

Partial

Cardiovascular and immune health support.

Directionally plausible for green tea polyphenols but not a proven product-specific outcome. Reasonable as a category antioxidant claim; the fat-loss effect specifically is modest (Hursel 2009).

▸ THE DEEP DIVE

What our test actually found

01The mildness is the whole point

Jarrow's water-extracted 500 mg green tea delivers a lower, gentler catechin dose than the aggressively-standardized 98% extracts. For a cautious or entry-level buyer — and especially for the liver-safety-conscious — a dose that's genuinely hard to overdo is a feature, not a shortfall. It's the pick when you want a soft, low-risk way to get some catechins.

02Water extraction and a trusted brand carry the purity score

Water extraction (rather than solvent/acetone) plus Jarrow's decades-long QC reputation, non-GMO and gluten-free labeling, and cGMP suppliers make this one of the stronger picks on purity. The gentle process and established pedigree are exactly what lift it above flashier but less-trusted extracts on that axis.

03The caffeine runs a little higher

At ~40 mg of caffeine per capsule, Jarrow carries more than the lightly-caffeinated picks like Life Extension (~25 mg) or Zhou (~15 mg) — roughly a cup of green tea's worth. Read it off the label and count it toward your daily total; if you're caffeine-sensitive or dosing late, a lower-caffeine or decaf option is a better fit.

04Lower EGCG is the reason it ranks #6

The honest trade-off: because the EGCG fraction is lower, the catechin effect is more modest than the high-standardization picks. That's fine if you want a gentle entry point, but if you specifically want maximum EGCG per capsule, one of the 45-50% EGCG extracts above it is the better tool. Take it with food and it's an easy, trustworthy, well-priced choice.

▸ THE TRADE-OFFS

Pros & cons, no sugar-coating

Pros
  • Water-extracted (not solvent/acetone) from a long-respected supplement brand
  • Gentle, lower catechin dose — a sensible entry point that's hard to overdo
  • Non-GMO, gluten-free, with Jarrow's established QC
  • 100-count bottle at a strong price — low cost per dose
Cons
  • Lower EGCG content than the high-standardization picks — a milder effect
  • Carries more caffeine (~40 mg) than the lightly-caffeinated picks
▸ THE BOTTOM LINE

The gentle, water-extracted budget buy — buy it for a mild, hard-to-overdo dose.

Jarrow's Green Tea is the gentle, water-extracted option and a genuinely sensible budget buy. It's a 500 mg water-extracted green tea at 50% polyphenols / ~30% catechins, which means a lower, milder EGCG dose than the high-standardization capsules — and for the liver-safety conscious, a dose that's hard to overdo is a feature, not a flaw. The brand's QC and water-extraction are reassuring, and the price per dose is strong. It ranks #6 because the lower EGCG means a more modest effect, and it carries a bit more caffeine (~40 mg) than the lightly-caffeinated picks. If you want a gentle, trustworthy, well-priced extract and aren't chasing maximum EGCG, it's an easy, honest choice — taken with food.

Check Jarrow Formulas · 500 mg water-extracted green tea, 50% polyphenols / 30% catechins · 100 ct on Amazon
▸ ALTERNATIVES

If this doesn’t fit — try these

▸ RESEARCH

Sources & further reading

  1. Hursel 2009Hursel R, Viechtbauer W, Westerterp-Plantenga MS · 2009 · International Journal of Obesity (Lond) · PMID 19597519

    The effects of green tea on weight loss and weight maintenance: a meta-analysis

    Meta-analysis of 11 studies: green tea catechins were associated with a modest ~1.3 kg mean weight change, clearest with caffeine. A gentle, lower-EGCG extract like Jarrow's is a mild version of this already-modest effect.

  2. Hu 2018Hu J, Webster D, Cao J, Shao A · 2018 · Regulatory Toxicology and Pharmacology · PMID 29580974

    The safety of green tea and green tea extract consumption in adults — Results of a systematic review

    Systematic review: liver-related adverse effects were associated with high-dose extract taken fasted. Jarrow's gentle, hard-to-overdo dose sits at the low-risk end of this signal.

  3. Isomura 2016Isomura T, Suzuki S, Origasa H, Hosono A, Suzuki M, Sawada T, et al. · 2016 · European Journal of Clinical Nutrition · PMID 27188915

    Liver-related safety assessment of green tea extracts in humans: a systematic review of randomized controlled trials

    Systematic review of RCTs: liver-enzyme elevations clustered at higher EGCG doses — reinforcing that Jarrow's low-EGCG, water-extracted profile is among the lowest-risk in the lineup.