What are the benefits of polyphenols in skincare?

Olive oil polyphenols -- particularly hydroxytyrosol -- protect skin cells from UV-induced damage and inhibit enzymes that break down collagen and elastin. A 2024 study found oleocanthal and oleacein (both in high-polyphenol EVOO) significantly reduced wrinkle count in participants. Kosterina skincare delivers these polyphenols from 500+ mg/kg EVOO.

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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.

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    Extra Virgin Duo

    $55
    $55

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

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  • Extra Virgin Olive Oil Shot (1-Month)

    Extra Virgin Olive Oil Shot (1-Month)

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

    Crushed Fruit Vinegar Trio

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