Skin Barrier-Enhancing Effects of Dermabiotics HDB with Regulation of Skin Microbiota
2024
Kim, K.M. | Song, J.W. | Lee, C.W. | Kim, D.S. | Sohn, J.H. | Lee, S.H.
In the regulation of inflammatory responses and skin homeostasis, the skin and its microbiota are closely related. Studies have reported that lactic acid bacteria extracts can improve the skin condition and microbiota. In our previous study, we developed probiotic lysates, which are efficacious in improvement of human skin cells and the skin barrier. The skin-moisturizing effect of Dermabiotics HDB (HDB) prepared with Lactiplantibacillus plantarum, and the correlation between changes in the skin microbiota and moisture contents, were evaluated and analyzed in clinical trials. The clinical parameters on the cheeks of 21 female participants were measured using biophysical tools before and after (2 weeks) using HDB or control. The skin microbes were collected and identified using 16s rRNA gene sequencing. HDB significantly improved moisture intensity, transepidermal water loss (TEWL), and hot flush level on the cheek. The beta-diversity of the skin microbiota was different from that of the control in the unweighted UniFrac principal coordinate analysis after using HDB. The genus Lawsonella demonstrated a positive correlation with TEWL and a negative correlation with the moisture contents of the keratin layer, regardless of the use of HDB and control. Conversely, after HDB use, the genus Staphylococcus was increased and associated with a lower hot flush level, while the genera of the phylum Proteobacteria tended to decrease, which is associated with an improved skin condition. Overall, HDB showed clinically proven effects, including skin moisturization with regulation of the skin microbiota.
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