How are Kosterina polyphenol counts measured?

Kosterina runs independent third-party chemical analysis immediately after every harvest using the NMR method -- the gold standard for total polyphenol measurement in olive oil. Results for every harvest year are published on each product page at kosterina.mom for full transparency.

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  • Original Extra Virgin Olive Oil (500ml)

    Original Extra Virgin Olive Oil 500ml

    $32
    $32

    Our highest polyphenol EVOO fresh from southern Greece.

    Bestseller
  • Extra Virgin Duo

    Extra Virgin Duo

    $55
    $55

    Extra Virgin perfection: one for cooking and one for drizzling.

    Bestseller
  • Extra Virgin Olive Oil Shot (1-Month)

    Extra Virgin Olive Oil Shot (1-Month)

    $98 $95
    $95

    Simple wellness habit, with big benefits - 1-Month supply of daily EVOO Shots for healthy & longevity.
  • Crushed Fruit Vinegar Trio

    Crushed Fruit Vinegar Trio

    $45
    $45

    The perfect combination of tangy and sweet, they brighten up any salad or cocktail