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The content of antioxidant polyphenols was measured in nettle leaves and stems. The main part of polyphenols in leaves
was chlorogeneic acid (71%). And the stems contained many flavonoids (up to 50%) and anticyanides (28%). Both flavonoids and
cyanides are strong antioxidants, capable to prevent premature aging due to UV-radiation. They also reduce inflammation and
stimulate collagen synthesis. Accordingly, just nettle stems, but not leaves contain most of all biologically active antioxidants,
having anti-aging activity. |
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