Green Tea Extract
Of 4,713 on-market green tea extract products in the January 2026 DSLD dump, the median declared dose is 100 mg, and 79.7% list unspecified/undisclosed form as the primary form.
Form share
Of 4,069 products with an identifiable primary form, here is the share held by each form of Green Tea Extract on the market today.
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| Form | Quality tier | n | Share |
|---|---|---|---|
| unspecified/undisclosed form | Unrated | 3,244 | 79.7% |
| Standardized extract (EGCG / catechins / polyphenols declared) | Unrated | 525 | 12.9% |
| Green tea leaf powder / matcha | Unrated | 205 | 5.0% |
| Decaffeinated green tea extract | Unrated | 95 | 2.3% |
Form share over time
Entry-year breakdown of the top forms, 2012–2025.
Dose distribution
Deciles of declared dose per serving (mg), among 2,314 products with a disclosed amount.
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- 49.1% of products don't disclose an amount because Green Tea Extract is declared inside a proprietary blend.
Where does your dose rank?
Enter a per-serving dose (mg) to see exactly how it compares to the 2,314 on-market green tea extract products with a disclosed amount. The chart above groups doses into deciles; this looks up the exact percentile for one number.
By dosage form
By target group
Top brands
Search interest over time
How often people search for green tea extract on Google, US only, the last 5 years. This is public interest, not DSLD label data — a spike here doesn't necessarily line up with anything on this page, and Google's own index (100 = that term's peak popularity in the chosen window) is relative, not an absolute search-volume count.
Or see this search directly on trends.google.com.
Forms explained
Label discloses only green tea (leaf) extract mg with no EGCG/catechin standardization; catechin content of extracts varies widely, so dose per mg is not comparable across labels.
Typical standardization: EGCG, total catechins or total polyphenols declared as a % of the extract (varies by product)
The form that matches the literature's EGCG-based dose basis, and the one carrying the hepatotoxicity caution (EFSA: >=800 mg EGCG/day as supplement raised transaminases; USP label caution), but efficacy/safety was not compared across standardization levels, so it is not ranked. A row named "EGCG" declares the catechin itself, not the extract, and is kept unresolved (never summed with extract mg).
Source: EFSA ANS Panel 2018, EFSA J 16(4):e05239, PMID 32625874; Oketch-Rabah HA et al. 2020, Toxicol Rep 7:386-402, PMID 32140423
Caffeine removed (relevant to stimulant load, since caffeine is tracked as its own compound); no human comparison of catechin efficacy or safety vs caffeinated extract was verified, so it is not ranked.
Typical standardization: None (whole ground leaf)
Whole-leaf powder carries a lower, unstandardized catechin concentration than a standardized extract, so mg of powder and mg of extract are not equivalent doses; no human comparison was verified, so it is not ranked.
Reference values
- RDA (adult): not established — Botanical extract, not an essential nutrient; no DRI exists.
- Tolerable Upper Intake Level (adult): not established — No formal UL. Safety guidance is catechin-based, not extract-based: the EFSA ANS Panel (2018) concluded that doses of >=800 mg EGCG/day taken as a food supplement produced a statistically significant rise in serum transaminases vs control in interventional trials (EFSA J 16(4):e05239, PMID 32625874); the USP review links case-report hepatotoxicity to EGCG intakes of ~140-1,000 mg/day and added a label caution (take with food, not on an empty stomach) to its decaffeinated green tea extract monograph (Oketch-Rabah HA et al. 2020, Toxicol Rep 7:386-402, PMID 32140423). Because this entry's unit basis is extract mg and the catechin content of extracts varies widely, no extract-mg UL can be derived.
- Studied clinical dose range: ?–?
- Note: Unit basis decision: labels declare "Green Tea (Leaf) Extract" in mg of EXTRACT, with the standardization (EGCG, catechins, polyphenols, % extract) in raw_form -- so unit_basis is extract mg, matching how ashwagandha and curcumin are handled. The clinical and safety literature is expressed in EGCG/catechin mg, and extracts range from roughly 40-98% catechins, so a verified studied dose in extract mg does not exist. studied_dose_* is therefore null rather than back-calculated. Verified EGCG-basis facts for reference: Chen IJ et al. 2016, Clin Nutr 35(3):592-599, PMID 26093535 -- 12 weeks of high-dose green tea extract (EGCG) at 856.8 mg/day in women with central obesity gave significant weight and waist reduction (in the same group's crossover trial, Huang LH et al. 2018, BMC Complement Altern Med 18:294, PMID 30400924, the daily extract contained 856.8 mg EGCG at 57.12% by weight per the paper's Table 2, i.e. ~1,500 mg extract/day -- calculated here, not stated); Zheng XX et al. 2011, Am J Clin Nutr 94(2):601-610, PMID 21715508 -- 14 RCTs/1,136 adults, green tea beverages/extracts lowered total cholesterol 7.20 mg/dL and LDL 2.19 mg/dL independent of catechin dose; Jurgens TM et al. 2012, Cochrane Database Syst Rev 12:CD008650, PMID 23235664 -- green tea gave no significant weight loss in the studies outside Japan. Rows named "EGCG" or "Epigallocatechin Gallate" (mostly nested under an extract row on the same label) declare the catechin itself, are routed to the standardized form with the amount left unresolved, and are never summed with extract mg. Green tea extract also contributes caffeine; caffeine is tracked as its own compound and "Caffeine" rows are not aliased here. Bare "Polyphenols"/"Catechins" rows are not aliased (source-ambiguous).