Patent No. EP3512606 (titled "Novel Cosmetic And/Or Nutraceutical Or Dermatological Use Of A Yeast Extract") was filed by Basf Beauty Care Solutions France on Sep 14, 2017. The application was issued on Jul 19, 2023.
Using a specific extract made from inactivated yeast fermented by lactic acid bacteria to increase beneficial bacteria like Staphylococcus epidermidis on skin and mucous membranes. The extract, obtained by fermenting hydrolyzed yeast extract, increases the ratio of commensal bacteria versus pathogens like Staphylococcus aureus. It can be used in cosmetics and nutraceuticals to improve skin health by balancing the microbiome. The yeast extract is applied topically to the skin or mucous membranes to increase commensal bacteria like Staphylococcus epidermidis and reduce pathogens like Staphylococcus aureus.

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