| CPC A61K 35/747 (2013.01) [A01N 63/20 (2020.01); A23L 33/135 (2016.08); A61K 35/74 (2013.01); C12N 1/205 (2021.05); A23V 2002/00 (2013.01); A23V 2400/143 (2023.08); C12R 2001/225 (2021.05)] | 12 Claims |

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1. A composition comprising an isolated Lactobacillus fermentum bacterial strain grown as biofilm, and/or comprising a bioactive extract of said biofilm, wherein the biological activity of the bioactive extract, is selected from antimicrobial activity, promoting commensal bacterial growth, enhancing skin or mucous membrane barrier function and enhancing a skin innate immune function, wherein the bacterial strain is Lactobacillus fermentum Qi6 having Accession No. PTA-122195.
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