Life Extension's Mega Green Tea Extract is the pick for anyone who wants to control their caffeine without giving up a strong, well-standardized dose. The lightly-caffeinated version delivers about 285 mg of EGCG (725 mg extract at 98% polyphenols / 45% EGCG) with roughly 25 mg of caffeine clearly stated — enough for the catechin-plus-caffeine synergy without coffee-level stimulation. And crucially, a fully decaffeinated SKU of the same extract exists for sensitive users or late-day dosing. The standardization is excellent and the brand's QC pedigree is among the most respected in supplements. It sits at #2 only on value: this is a premium price in a smaller 100-count bottle, so its cost per active mg is higher than the big-count value extracts. Take it with food, pick caffeinated or decaf to match your tolerance, and it's an outstanding, honest choice — as always, a modest fat-loss adjunct on top of a deficit, not a fat burner.
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A 725 mg extract standardized to 98% polyphenols and 45% EGCG delivers ~285 mg of EGCG — a strong, well-labeled dose that sits above NOW's moderate ~200 mg while staying well under the EFSA ceiling. The standardization is clearly disclosed.
Life Extension's QC reputation is among the most respected in supplements — made in the USA, non-GMO, with transparent standardization. Consistent, well-documented manufacturing that ranks near the top of the category on this axis.
The standout: caffeine is explicitly stated (~25 mg) AND a fully decaffeinated version of the same extract exists, so users can precisely control intake. The EGCG mg is disclosed and the dose is sensible with food — the exact caffeine transparency this category needs.
The weakest axis: a premium price in a smaller 100-count bottle makes the cost per active mg of EGCG higher than the value extracts. You pay for the QC and the caffeine options — worth it for the right buyer, but not the cheapest way to get EGCG.
“725 mg green tea extract standardized to 98% polyphenols / 45% EGCG (~285 mg EGCG).”
The listing states a 725 mg green tea extract standardized to 98% polyphenols with 45% EGCG, computing to ~285 mg of EGCG per capsule. Standardization and dose are disclosed and hold up as stated.
“Lightly caffeinated (~25 mg), with a decaffeinated version available.”
The lightly-caffeinated SKU discloses ~25 mg of caffeine, and Life Extension sells a separate fully decaffeinated version of the same extract. Both are real, currently-listed products — the caffeine-control claim is accurate.
“Non-GMO, made in USA, gluten-free.”
The listing carries non-GMO, made-in-USA, and gluten-free/vegetarian labeling, consistent with Life Extension's established QC. Accurate as stated.
“Supports healthy weight management and cardiovascular health.”
Directionally supported by the modest catechin evidence (Hursel 2009), but the weight effect is small and adjunctive and cardiovascular endpoints are not proven for this specific product. Reasonable as a category claim, not a product-specific outcome.
Most green tea extracts either stay silent on caffeine or offer only one version. Life Extension states ~25 mg on the lightly-caffeinated SKU AND sells a fully decaffeinated version of the same 98%/45% extract. That lets you dial the caffeine to your tolerance and timing — the cleanest caffeine-control setup in the lineup, and the reason it earns the 'best lightly caffeinated' badge.
At ~285 mg of EGCG per capsule, this is a meaningful dose — higher than NOW's moderate ~200 mg but comfortably below EFSA's 800 mg EGCG/day flag. Take it with food and don't add a second high-EGCG cap, and it stays firmly in the sensible range while giving you more active compound than the entry-level extracts.
Life Extension is one of the few supplement brands whose quality reputation is genuinely earned across decades — made in the USA, non-GMO, with transparent standardization. In a category that ranges from clean to anonymous, that pedigree is worth real weight, and it's why this scores near the top on purity and testing.
The one honest knock is value: a premium price in a smaller 100-count bottle means the cost per active mg of EGCG is higher than the big-count value extracts like Horbäach or Carlyle. For a buyer who wants caffeine control and premium QC, that's a fair trade; for a buyer optimizing purely on price per mg, one of the value picks is the better tool.
Life Extension's Mega Green Tea Extract is the choice for anyone who wants to control their caffeine without giving up a well-standardized dose. The lightly-caffeinated version delivers ~285 mg of EGCG with about 25 mg of caffeine — enough for the catechin-plus-caffeine synergy without coffee-level stimulation — and a fully decaffeinated SKU of the same extract exists for sensitive users or late-day dosing. The standardization (98% polyphenols / 45% EGCG) and the brand's QC pedigree are excellent. It sits at #2 only on value: it's a premium price in a smaller 100-count bottle. Take it with food, pick caffeinated or decaf to match your tolerance, and hold the honest framing — a modest fat-loss adjunct on top of a calorie deficit, not a fat burner. For caffeine control plus premium QC, it's an outstanding choice.
Check Life Extension · 725 mg extract, 98% polyphenols / 45% EGCG (~285 mg EGCG), ~25 mg caffeine · 100 ct on AmazonThe overall winner and the honest default — ~200 mg EGCG, very low caffeine, top-tier QC, and a 180-count bottle at low cost per active mg. Choose it if you want the safest, best-value default.
See it on the list →The highest standardized EGCG per capsule (~450 mg, 98% standardized, third-party tested). Choose it if you want maximum potency and will take it with food.
See it on the list →A clean, transparent ~250 mg EGCG dose with caffeine stated (~15 mg) at a fairer price. Choose it if you want caffeine clarity without the premium.
See it on the list →Meta-analysis of 11 studies: green tea catechins (typically with caffeine) were associated with a modest ~1.3 kg mean weight change, and the effect was stronger with caffeine — the rationale for a lightly-caffeinated extract like this one.
Systematic review: liver-related adverse effects were associated with high-dose extract taken fasted. Supports taking this ~285 mg EGCG dose with food and not stacking a second high-EGCG capsule.
Systematic review of RCTs: liver-enzyme elevations clustered at higher EGCG doses, reinforcing a dose-dependent hepatic signal and the case for keeping daily EGCG in a sane range.
