Sentences with phrase «commercial grapefruit seed extracts»
«Confirming an earlier study by researchers in Germany we found that some commercial grapefruit seed extracts contain benzethonium chloride, a synthetic antimicrobial agent commonly used in cosmetics and only approved for topical use, at relatively high levels of 8 %.»
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«The antimicrobial efficacy as well as the content of preservative agents of six commercial grapefruit seed extracts were examined.