The best green tea extract we track, ranked by real cost-per-dose — not paid placements. Across 6 brands, 1 are third-party tested in a public registry. Across 20 tracked options the typical dose runs $0.10 per serving.
Updated August 2026prices checked what’s changed
Ranked across 24 products · prices checked Aug 24, 2026

NSF Certified for Sport brand at $0.61 per serving.
How we rank
We rank by cost-per-dose — price ÷ servings, normalized to the daily dose— so bottle sizes and strengths compare fairly. Prices are scraped at publication and re-checked when the catalog refreshes (see the “Prices checked” stamp above). There is no paid placement and no kickback for ordering. Full methodology · Editorial standards.
That cost-per-dose number is the one most retailers and review sites leave out — they’ll show a sticker price and a serving size, but not what a day actually costs. We compute it for every product so you can compare like for like.
The cheapest bottle isn’t automatically the best value: a low-absorption form (magnesium oxide is the classic example) can look cheap per milligram yet deliver less of what you actually absorb. Where forms differ, compare cost per absorbed or elemental unit, not the compound weight on the label. A bigger bottle isn’t automatically cheaper per dose either — this list already ranks by cost per dose, so a larger count only wins if it truly costs less per serving. Compare Green Tea Extract forms.
Our data on this: the big bottle saves a median ~86% per serving · the gummy tax (~2× more) · the form premium · the price spread.
Cost-per-serving normalizes price across bottle sizes — a 60-count and a 365-count compare fairly. Top 20 of 24 shown.
See also: Green Tea Extract basics · all best-value rankings
1 of the 6 brands ranked above appear in an independent certifier's own public registry. A certification confirms the label matches the contents — it says nothing about how well the supplement works, and an uncertified brand is not automatically worse.
Horbäach Green Tea Extract Supplement | 450mg | 180 Capsules | Extra Strength… — $0.06 per serving ($9.99 for 180 servings), the lowest cost-per-dose green tea extract in our Amazon US catalog as of August 2026.
The cheapest green tea extract we track works out to $0.06 per serving, against a typical $0.10 per serving across 20 products. Retailers and review sites list a price and a serving size but rarely divide it out — this is what a day actually costs, as of August 2026.
About $0.10 per serving across 20 tracked green tea extract products — the cheapest we track is $0.06 per serving, with most falling between $0.08 and $0.17.
Of the 6 green tea extract brands ranked here, 1 hold a third-party certification we could verify in a public registry: Optimum Nutrition (NSF Certified for Sport). Certification means an independent lab confirmed the label matches the contents and screened for contaminants — it does not rate how well the supplement works. The cheapest certified option is Optimum Nutrition, Amino Energy - Pre Workout with Green… at $0.61 per serving.
Optimum Nutrition — NSF Certified for Sport. We only count a brand as tested when it appears in the certifier's own public registry (USP Verified, NSF Certified for Sport, Informed Choice), never on a claim printed on the label. The remaining 5 brands on this page have no certification we could verify.
We don't republish marketplace star ratings — they belong to the retailer, they move constantly, and a 4.6 average tells you nothing about what is in the capsule. The two things you can verify are what a dose costs and whether an independent lab checked the label. On both counts, Optimum Nutrition, Amino Energy - Pre Workout with Green… stands out: NSF Certified for Sport certified at $0.61 per serving.
The green tea extract products we track range from 75mg to 1450mg per serving. We rank by cost per serving so you can compare value across strengths — check the label for the dose that suits you.
1 of 6 tracked Green Tea Extract brands here are flagged as carrying independent third-party testing — a voluntary check of a product's identity, potency and contaminants by an outside lab. It's a quality signal, not a value or efficacy claim. Confirm any brand's current status on the official registries:
Testing status is self-reported by the brand or drawn from public certification and may change — always verify on the official registry before purchase.
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.