The present specification discloses a composition comprising Lactobacillus sakei MD_honey suckle (Accession No.: KCTC12675BP) or a culture product thereof as an active ingredient, and novel uses thereof. The composition comprising the strain or its culture product as an active ingredient has excellent DPPH radical scavenging ability, antibacterial activity against pathogenic microorganisms, high content of total polyphenols, and ability to inhibit melanocyte growth. Therefore, the composition of the present invention has anti-aging, skin wrinkle improvement, skin whitening, and antimicrobial effects, and can be widely used in cosmetic compositions, pharmaceutical compositions or health foods requiring these effects.
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