Hydrocolloid bands, which enclose a wound in a gel form, can prevent fading and protect the wound from the external environment; however there are also problems associated with their use, such as skin irritation and bacterial growth. In this study, a liquid-type hydrocolloid band that can provide an antibacterial effect while minimizing skin irritation was developed and its functionality was confirmed. The mixing ratio was optimized by mixing natural product-derived pectin LM and agar in order to obtain a gelation suitable for use as a component of a wound healing band, with optimization of conditions for formation of a film without including volatile components. The result of measuring the moisturizing power with the optimized natural product-derived composition showed that when D-panthenol and hyaluronic acid were mixed in an 8:2 ratio, an increase in the moisture content of the skin was observed even after 4 hours, so that an excellent moisturizing effect was confirmed. In addition, an antibacterial effect against Staphylococcus aureus at 3.4% of bee venom and 0.7% of lavender oil was confirmed, demonstrating the suitability of the natural product-derived hydrocolloid band as a material for application in wound healing. Therefore, application of this natural products-derived hydrocolloid band to various wound treatments can result in eradication of the cause of chemical allergic reactions, by providing an excellent moisturizing capacity for prevention of wound drying, as well as a powerful antibacterial effect.

Measurement of the expression of Wnt3a, Wnt5a, interleukin (IL)-1α, and transforming growth factor (TGF)-β in human dermal papilla cells (hDPCs) was performed for evaluation of the hair growth promotion and hair loss inhibitory efficacies of Stephanandra incisa ethanolic extract (SIEE). Treatment with 25 μg/mL SIEE and 1 μM minoxidil (MXD) resulted in upregulated expression of Wnt3a mRNA by 6.0% and 62.7%, respectively, and expression of Wnt5a mRNA by 46.3% and 70.3%, respectively. Treatment with 25 μg/mL SIEE and 1 μM MXD resulted in downregulated expression of IL-1α mRNA by 31.7% and 42.7%, respectively, and expression of TGF-β mRNA by 31.3% and 46.3%, respectively. SIEE was less effective than MXD; however, treatment with SIEE resulted in upregulated gene expression of hair growth factors, Wnt3a and Wnt5a, and downregulated gene expression of hair loss factors, IL-1α and TGF-β. These results suggest the potential for use of SIEE as a natural cosmetic material for promotion of hair growth and inhibition of hair loss. Measurement of the antioxidative efficacy was performed in a cell-free system. The XO inhibitory activity of S. incisa methanolic extract (SIME) and SIEE at 1,000 μg/mL was 61.3% and 57.1%, with an IC50 of 407.7 and 476.5 μg/mL, respectively. The SOD-like activity of SIME and SIEE at 1,000 μg/mL was 59.8% and 73.8%, with an EC50 of 585.5 and 431.6 μg/mL, respectively. The electron-donating ability of SIME and SIEE at 1,000 μg/mL was 80.1% and 83.7%, with an SC50 of 96.0 and 49.4 μg/mL, respectively. SIEE exhibited higher antioxidative efficacy than SIME. High efficacy for reduction of reactive oxygen species may be an underlying mechanism of downregulation of the gene expression of hair loss factors by SIEE in hDPCs.

The aim of the current study was to examine the improvement efficacies of Hemiptelea davidii methanol extract (HDME) on skin physiological activities. The results for total polyphenolics and flavonoids in HDME were 292.8 TAE mg/g and 212.6 RE mg/g, respectively. The electron-donating ability of HDME at a concentration of 1,000 μg/mL was 86.6% and the results of calculation showed that the SC50 value of the free radical was 274.7 μg/mL. Inhibition of collagenase, elastase, and mushroom tyrosinase activity by HDME at 1,000 μg/mL was 71.6%, 65.3%, and 59.6%, respectively. According to the results of calculation, the IC50 values were 358.0 μg/mL, 478.7 μg/mL, and 422.7 μg/mL for collagenase, elastase, and mushroom tyrosinase activities, respectively. The IC50 values were 360.3 μg/mL, over 1,000 μg/mL, and 240.7 μg/mL for positive control ascorbic acid or arbutin for collagenase, elastase, and mushroom tyrosinase activities, respectively.

A study examining the physicochemical properties of extracts from different seed parts of mangifera indica L. from Jeju Island was conducted. Water, ethanol, and 1,3-butylene glycol extracts of other parts including seed, seed coat, and kernel in apple mango were prepared. Analysis of total polyphenol and flavonoid contents was performed. According to the results, apple mango kernel ethanol extracts (AMKE-E) showed higher content than other extracts. In addition, expression of AMKE-E was increased by radical scavenging activities of DPPH and ABTS, similar to the positive control, vitamin C. Inhibition of the activities of elastase by AMKE-E was confirmed. The results of HPLC analysis indicated that penta-O-glloyl beta D-glucose was the active compound in the extracts. The findings of this study demonstrate that AMKE-E can be used as a functional ingredient of cosmetics and exhibits antioxidant and elastase inhibition activity.

Ultraviolet (UV) is a major factor in photoaging of skin, and an abnormal reaction of the keratin cycle from the base layer of the skin to the keratin layer, which reduces the amount of moisture in the epidermis, reducing the thickness of collagen fibers in the dermis, and breaking the binding of elastic fibers, occurs in photo-aging skin. This study was conducted in order to examine the effects of expression of MMP-2, 9, and Type I Procollagen induced by antioxidant and UVB of jujube seed extract. The 60% ethanol extract of jujube seeds showed significant radical scavenging activity using the DPPH method and the ABTS method, and in assessment of hydrogen peroxide radical scavenging activity, and minimal SOD-like activity effect was observed. Weak activity of 30.76% at 1,000 ug/mL from collagenase inhibitory activity was detected for 60% ethanol extract of jujube seeds. These findings demonstrated the protective effect of J60 in response to UVB-induced aging in human fibroblast cells through regulation of the type-1 procollagen, MMP-9.

The purpose of this study was to determine the potential of Helianthus tuberosus as a natural material for use in development of cosmetics and products for enhancement of inner beauty by examining the bioactivity of water extract (HTW) and 20% ethanol extract (HTE). More than 47% protective effects against oxidative stress were obtained in HepG2 cell lines by treatment with 400 μg/mL of HTW and HTE. Antibacterial activity increased as the treatment concentration of each extract of H. tuberosus extract increased. None of the extracts exhibited toxicity in a RAW 264.7 cell line in 150 μg/mL. Reduced production of NO to 69.9±1.9% was observed for HTW and 69.7±1.5% for HTE at a concentration of 100 μg/mL. Concentration-dependent inhibition of production of inflammatory cytokines, TNF-α, IL-1β, and IL-6, was observed. Cytoxicity of H. tuberosus extract was not detected in Caco-2 cells and concentration-dependent inhibition of NO production was observed. Activity of α-amylase and protease enzyme, which are digestive enzymes, increased with increasing concentration of H. tuberosus extract. The findings of this study will provide basic data for development of a natural material for utilization in development of cosmetics and products for enhancement of inner beauty using H. tuberosus.

The cell protective effect of Sageretia thea callus extract against particulate matter 10 (PM10) as well as its anti-aging effects have been demonstrated. In this study, we examined the biological effects of Sageretia thea callus extract for use in development of natural cosmetic ingredients. HaCaT cells were treated with PM10 (ERM-CZ120) and Sageretia thea callus extracts for evaluation of the cell protective effect. Sageretia thea callus extract showed approximately 30% cell protection, 80% reduction in production of ROS, and 85% increase in synthesis of hyaluronic acid in response to treatment with PM10. In addition, Sageretia thea callus extract induced an increase in synthesis of type I procollagen in human fibroblast cells. Based on these results, we suggest that Sageretia thea callus extract can be regarded as a natural resource for utilization as a cosmeceutical material.

In the current study, we examined the effects of Glechoma hederacea var. longituba extracts (GH) on ceramide production and anti-inflammatory efficacy in keratinocytes. HaCaT cells were stimulated with M5 (mixture of IL- 17A, IL-22, IL-1α, TNF-α, and oncostatin M) in order to establish a psoriatic keratinocyte model in vitro. Our results showed that treatment with GH resulted in a reduction of S1P (sphigosine 1-phosphate) levels by inhibition of ceramidase in HaCaT cells. In M5-treated HaCaT cells, release of proinflammatory cytokines and chemokines including TNF-α, IL-1β, CCL-1, and CCL-2 was significantly inhibited by GH. In addition, phosphorylation of MAPKs was also inhibited by GH. Phosphorylation of NF-κB and STAT3 was also inhibited by GH in psoriatic keratinocytes. These findings suggest that GH can inhibit production of ceramide and suppress expression of inflammatory proteins. Therefore, GH may be useful as a natural cosmetic material.

This study surveys 74 beauty department teachers to investigate their perception on 2022 revised curriculum and the high school credit system, to find the appropriate operation of the minoring in other departments model, and to explore the suitable minor departments for cosmetology students. The major results are following; In terms of the perception on the high school credit system, while there was a difference between the group of regular teachers and fixed-term teachers, teachers' educational career brought no big difference. Respondents were positive for the acceptance of the system, competency requirements, and expected effects, and they highly agreed on teachers' additional workload. The preference models for beauty subjects were shown in the order of the detailed major course type, the minoring in other departments type, and the subject selection of other departments type. The preferred subjects for minor majors were shown in order of hair and beauty, makeup, and basics of beauty. Respondents preferred the NCS curriculum the most for the operation form, and they preferred the level of major subjects, and they responded that the units of competency were appropriate in order of perm, shampoo, facial care, body care, basic makeup, color science, nail care, and nail art. The suitable minor departments for cosmetology students were shown in the order of photography and video, design cultural contents, and health and welfare. Based on the results, subjects preference for high school credit system, operation methods, and appropriate departments etc. could be found, which is meaningful that this study can contribute to the utilization of vocational high school credit system model in the near future.

The purpose of this study is to analyze the service quality of one-person hair salons, which are rapidly increasing, and to provide basic data on the development and start-up of one-person hair salons through prevention of customer churn and attracting customers in order to provide differentiated satisfaction to customers. This study utilized data on 664 male and female subjects in their 20s and 60s living in Daegu and Gyeongbuk, who had experienced using one-person hair salons, and the results of the study are as follows. First, the results of analysis of service quality of one-person hair salons showed differences in marital status, age, educational background, and occupation, and analysis of consumer response showed differences in customer satisfaction in marital status, age, and gender. Second, customer satisfaction according to the service quality of a one-person hair salon is a 'group with relatively high service quality', 'group with relatively high empathy type', 'group with relatively high reliability and service' There was a difference in the order of 'the group with relatively low quality', and a difference in the consumer response according to the service quality of one-person hair salons was also observed according to the size of the groups, and it was in the same order as the difference in the size of the groups in customer satisfaction. Third, the results of analysis of the correlation between service quality, customer satisfaction, and consumer response of one-person hair salons showed a positive correlation between the service quality of one-person hair salons and customer satisfaction and consumer response. In addition, customer satisfaction showed positive correla.