락토바실러스 람노서스 발효액의 피부 안전성 및 목피부 개선에 미치는 영향
분야
자연과학 > 가정
저자
김기숙 ( Gi-sook Kim ) , 강상모 ( Sang-mo Kang )
발행기관
한국미용학회
간행물정보
한국미용학회지 2017년, 제23권 제1호, 101~114페이지(총14페이지)
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45802165.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    The purposes of this study were to verify the skin safety of the fermented broth of Lactobacillus rhamnosus by means of clinical trial, and to secure its applicability as an ingredient of cosmetics for recovering skin barrier as well as anti-aging. To clinical trial, the fermented broth of L. rhamnosus with different substrates, namely fermented MRS broth (MRS), fermented milk broth (FM), fermented milk-cream broth (FMC) and distilled water (C) were made into the water base of cosmetics for different experimental groups, And applied on the skin of middle-aged women for 7 weeks. Thereafter, a survey was conducted on actual skin irritation. Also, any other resulting changes in the neck skin were observed before and after clinical trial. The results showed that the fermented milk-cream broth of L. rhamnosus did not induce skin itchiness, dryness, redness, allergic reaction and eye-stimulation. Furthermore, the fermented broth of L. rhamnosus resulted in different changes on the neck skin, depending on their respective substrates. In particular, the FMC group obtained the following statistically significant results: increases in moisture contents (p<.001) and sebum contents (p<.05), decreases in TEWL (p<.05), and skin roughness (p<.01), increases in skin elasticity (p<.05), as well as a drastic drop (4.92%) in the melanin index compared to the control group. Thus, the fermented milk-cream broth of L. rhamnosus is expected to be safe as an ingredient of cosmetics for skin. In addition, the fermented milk-cream broth of L. rhamnosus was proven as an applicable ingredient of cosmetics that recovers damaged skin barriers and improves the neck skin of middle-aged women.
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