The Olive Oil Polyphenol Index · 2025/26 harvest
The producers we found that publish a polyphenol figure for their current oil, ranked by the two documented compounds. Every number links to the producer's own page or lab report.
Producers listed
15, from 7 countries
Ranked by
oleocanthal + oleacein, mg/kg
Every figure
copied from the producer's own page or certificate
Edition
2025/26 harvest · 2026/27 follows the new pressings
How the ranking works
Totals from different lab methods are different currencies: the same oil tests at 874 on one method and 1,046 on another. A named molecule is the exception. Measured on the same oils, oleocanthal agrees across methods within about 10%. So the index ranks on oleocanthal + oleacein, the D1 figure printed on University of Athens certificates, and an oil can only be ranked when its producer publishes both.
Three rules decide who is in
Published by the producer
On the producer's own site. Retailer listings and award registries don't count.
Current or previous harvest
Polyphenols decline as oil ages. A 2022 figure describes an oil that no longer exists.
Any accredited method
The method is printed next to every number. Oils with a total and no compounds are listed, unranked.
The ranked index
Oleocanthal + oleacein, mg/kg, as published
Laconiko
ZOI
1,196total 1,397 NMR
The Governor
Limited Edition
875total 1,316 NMR
ATTIMO
Coratina
807total 847 HPLC
Kyoord
High Phenolic
657total 1,007 NMR
Pamako
Monovarietal
634total 2,000 NMR
OlvLimits
Green Machine
439total 1,295 NMR
Olivea
Ultra High Phenolic
419total 1,046 NMR
Sakellaropoulos
Fyllikon First Harvest
390total 1,825 NMR
Grey: each brand's own headline total and method. The bars and the totals do not sort the same way, which is the point.
The index
Each card carries the producer's compound values, the headline total in the producer's own method, and the document behind them. We make olive oil ourselves and our Coratina is here, held to the same format and the same rules as everyone else.
Kalamon · Laconia, Greece
Oleocanthal + oleacein
1,196 mg/kg
1,000 oleocanthal · 195 oleacein
The most striking compound figure in this index, oleocanthal at roughly seven times the average oil, documented, and enough for first place on its own. Greek-grown, US-sold, and regularly sold out.
Lianolia · Corfu, Greece
Oleocanthal + oleacein
875 mg/kg
577 oleocanthal · 298 oleacein
Corfiot Lianolia with the strongest fully documented compound pair in the index, in both grades.Also in range · Premium: 771 combined (476 + 295), total 1,174
Coratina · Puglia, Italy
Oleocanthal + oleacein
807 mg/kg
471 oleocanthal · 336 oleacein
Our own oil, held to the same format as everyone else's. These values come from the chromatography family, which in the one published same-oil comparison on this page read oleocanthal well below NMR. This row is measured by the conservative method.
Lianolia · Corfu, Greece
Oleocanthal + oleacein
657 mg/kg
374 oleocanthal · 283 oleacein
A US brand pressing Corfiot Lianolia, with compound values ahead of oils carrying much larger totals.
Tsounati · Crete, Greece
Oleocanthal + oleacein
634 mg/kg
372 oleocanthal · 262 oleacein
The largest total in the index, and the clearest demonstration of why this page doesn't rank by totals. The 2,000 rides mostly on other derivative compounds, while the two headline molecules sit mid-field. High-altitude organic Tsounati.
Coratina · Puglia, Italy
Oleocanthal + oleacein
439 mg/kg
292 oleocanthal · 148 oleacein
A Dutch brand bottling early-harvest Puglian Coratina. A four-figure total with the two headline compounds at roughly a third of it.
Olympia · Messinia, Greece
Oleocanthal + oleacein
419 mg/kg
244 oleocanthal · 175 oleacein
The most instructive entry on the page. The same oil, analysed by both method families, both documents published. The totals land 20% apart. If you read one entry to understand why cross-method comparison needs care, read this one.
Koroneiki · Sparta, Greece
Oleocanthal + oleacein
390 mg/kg
226 oleocanthal · 165 oleacein
The deepest publication record in olive oil. Certificates for every product, every year, for sixteen years. The second-largest total in the index, built mostly on compounds other than the headline pair.
The oil at number 3, with its two sister varieties and every lab report: high-polyphenol olive oil by ATTIMO.
Stated totals only
They cannot be placed on the index. Listed by stated figure, which is a list and not a ranking: these totals come from four different methods, and three of them from no stated method at all.
Koroneiki · Peloponnese, Greece · harvest 2025/26
No lab report · €59.83 / 500ml · sold out
1,473 mg/kg
NMR · 995 HPLC
The other dual-method publisher, 48% apart on the same oil, with no document and no compounds behind either figure.
1,100 mg/kg
method not stated
A respected Puglian mill, and the thinnest four-figure claim on this page. No method, no document, no compounds.
Picual · Almería, Spain · harvest 2025/26
Lab report viewable · €14.50 / 500ml
844 mg/kg
Folin-Ciocalteu
The most systematic publisher outside the ranked index. The whole range (Picual 844 down to Lechín 507), every campaign, with the method's limitations stated by the producer itself. Folin measures no individual compounds, so a compound ranking is off the table by construction.
Koroneiki · Messara, Crete · harvest not stated
No lab report · AED 120–210 across three 500ml oils
800 mg/kg
method not stated
The certificates it does show make the missing one more visible.
Picholine Marocaine · Morocco · harvest not stated
No lab report · $44.40 / 500ml
606 mg/kg
method not stated
Testing labs are named, the method is not. Both figures are theirs; we list both.
Crete, Greece · harvest not stated
No lab report · €9.99 / 250ml (≈ €20 per 500ml)
500 mg/kg
method not stated
The one supermarket-channel entry, from a German organic brand. A published number on a retail shelf is rarer than it sounds.
425 mg/kg
HPLC
A modest figure, published with a proper certificate. The document is real; the number is the number.
Last updated September 2026
| # | Brand · oil | Oleocanthal + oleacein | Total | Method | Harvest | Lab report | Price |
|---|---|---|---|---|---|---|---|
| 1 | Laconiko · ZOI | 1,196 | 1,397 | NMR | 2025/26 | viewable | $59.95 / 375ml (≈ $80 per 500ml) |
| 2 | The Governor · Limited Edition | 875 | 1,316 | NMR | 2025/26 | viewable | £49.95 (Limited) / £39.95 (Premium) per 500ml |
| 3 | ATTIMO · Coratina | 807 | 847 | HPLC | 2025/26 | viewable | €24 / 500ml |
| 4 | Kyoord · High Phenolic | 657 | 1,007 | NMR | 2025/26 | viewable | $49 / 500ml |
| 5 | Pamako · Monovarietal | 634 | 2,000 | NMR | 2024/25 | viewable | not listed by the producer (retailers around €33 / 500ml) |
| 6 | OlvLimits · Green Machine | 439 | 1,295 | NMR | 2025/26 | viewable | €23 / 500ml |
| 7 | Olivea · Ultra High Phenolic | 419 | 1,046 / 874 | NMR / HPLC | 2025/26 | viewable | $45 / 500ml |
| 8 | Sakellaropoulos · Fyllikon First Harvest | 390 | 1,825 | NMR | 2025/26 | viewable | not listed (telephone orders and resellers) |
| — | PJ Kabos · Phenolic Shot | not published | 1,473 / 995 | NMR / HPLC | 2025/26 | none | €59.83 / 500ml |
| — | Olio Intini · Coratina | not published | 1,100 | not stated | 2025/26 | none | €24.50 / 500ml |
| — | Oro del Desierto · Picual | not published | 844 | Folin-Ciocalteu | 2025/26 | viewable | €14.50 / 500ml |
| — | Oleum Crete · Koroneiki | not published | 800 | not stated | not stated | none | AED 120–210 across three 500ml oils |
| — | Morocco Gold · Extra Virgin | not published | 606 | not stated | not stated | none | $44.40 / 500ml |
| — | Rapunzel · Polyphenolia | not published | 500 | not stated | not stated | none | €9.99 / 250ml (≈ €20 per 500ml) |
| — | Blueprint · Snake Oil | not published | 425 | HPLC | 2025 | viewable | $39 / 750ml (≈ $26 per 500ml) |
Figures verified on the producers' own pages in September 2026. Machine-readable copy at /polyphenol-index.json, CC BY 4.0.
Why the totals differ
Each method counts a different set of compounds in different units. The gap has structural causes, not sloppy labs, and no fixed conversion exists because it depends on each oil's profile. This index converts nobody's number.
Same oil, two methods
Both numbers legitimate, both from the same bottle. Chromatography rows in the ranking are understated by the same asymmetry, never flattered: Olivea's oleocanthal reads 143 on its COI certificate and 244 on its NMR one.
How polyphenols are measuredOlivea Ultra High Phenolic · 20% apart
PJ Kabos Phenolic Shot · 48% apart
mg/kg, 2025/26 harvest. Olivea: two published certificates. PJ Kabos: figures stated in product copy, no certificate.
Why almost nobody publishes
Polyphenol content is the closest thing olive oil has to a measurable quality signal. It predicts bitterness and pungency, decides whether an oil qualifies for the EU's only approved olive oil health claim, and declines with age. Most producers publish nothing, and the reason is structural: late-harvest, high-yield production, the economics behind nearly every supermarket bottle, gives oil low in polyphenols. The brands on this page measured, and were willing to show the result.
| Who publishes what | Total | Oleocanthal | Oleacein | Report |
|---|---|---|---|---|
| Laconiko · ZOI | ||||
| The Governor · Limited Edition | ||||
| ATTIMO · Coratina | ||||
| Kyoord · High Phenolic | ||||
| Pamako · Monovarietal | ||||
| OlvLimits · Green Machine | ||||
| Olivea · Ultra High Phenolic | ||||
| Sakellaropoulos · Fyllikon First Harvest | ||||
| PJ Kabos · Phenolic Shot | — | — | — | |
| Olio Intini · Coratina | — | — | — | |
| Oro del Desierto · Picual | — | — | ||
| Oleum Crete · Koroneiki | — | — | — | |
| Morocco Gold · Extra Virgin | — | — | — | |
| Rapunzel · Polyphenolia | — | — | — | |
| Blueprint · Snake Oil | — | — |
Numbers that exist, published by someone else
Sparta Medicinal Olive Oil, 3,400 mg/kg per the World Olive Center's 2026 awards. Omfakion Plus, 2,006 to 2,101 with oleocanthal up to 1,534, per retailer listings. Evolia, around 2,012 per its Aristoleo award. PhenOLIV, 2,011, retailer listing only. Physis of Crete Korona, 1,477 NMR on a Polish retailer's page. None appears on the producer's own site, so none is in the index until that changes. Tricarico publishes full scans for its Coratina, from 2022, and is retired on the freshness rule.
The brands that publish nothing
As of September 2026: De Carlo, whose product page praises "the high value of polyphenols" without stating one, Guglielmi, Castillo de Canena, Biolea, Filippo Berio and Frantoio Muraglia publish no number for any oil. Terra Creta's traceability tool returns acidity, peroxides and UV absorbance for your exact bottle, and no polyphenols.
No published number does not mean a poor oil. It means an unverifiable one. The producers above operate mills, commission analyses and see these figures every season. Leaving them unpublished is a choice.
Submit an oil
Send the link to the published figures and the analysis. Entries are verified against the published source and added at the next update. Any accredited lab or university programme qualifies, whichever method it uses. Publishing oleocanthal and oleacein places an oil in the ranked index.
Every figure is copied from the producer's own page or certificate, as published, in September 2026. Nothing is converted between methods. ATTIMO's row is read from its certificate record at build time. Submissions: hello@attimo-oil.com.