• Journal of the Korean Applied Science and Technology
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• v.39 no.5
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• pp.710-719
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• 2022

This study attempted to investigate the possibility of Passiflora caerulea extract as a cosmetic material by measuring its antioxidant activities and melanin biosynthesis-inhibiting effects. For this, the substance was extracted with 70% ethanol, and ABTS radical scavenging activities were measured, using the TEAC assay. In addition, cell viability through the neutral red assay, ROS inhibition and inhibition of melanin biosynthesis were analyzed, and the results found the followings: In terms of ABTS radical scavenging activities of the extract, dose-dependent scavenging activities were observed. In trolox used as a positive control group and 0.1 mg/mL, similar radical scavenging activities were found. The production of ROS through CFDA was inhibited in a dose-dependent fashion. Furthermore, inhibition of melanin biosynthesis induced by 𝛼-MSH was confirmed. Therefore, it is reasonable to conclude that Passiflora caerulea extract has a potential as a cosmetic ingredient.

• Journal of the Korean Applied Science and Technology
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• v.39 no.5
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• pp.614-622
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• 2022

This study attempted to investigate the effect of manufacturing a formulation with lavender extract and applying it to damaged hair. The experimental material was prepared by adding 0 g, 3 g 6 g, and 9 g of lavender extract to the perm base agent. The prepared formulation was applied to four damaged hair samples and compared and analyzed. As a measurement method for the effect on damaged hair, tensile strength, absorbance using methylene blue, and gloss were measured. Statistical analysis was conducted for the reliability of the research results. The tensile strength measurement results showed that the tensile strength of the sample applied with a formulation containing 6 g and 9 g at 8 levels increased, affecting damaged hair. As a result of absorbance analysis using methylene blue, it was found that the absorbance of all samples applied by adding extracts decreased, affecting damaged hair. The gloss measurement results showed that the addition of 9 g affected the damaged hair. In conclusion, it can be seen that lavender extract affects damaged hair, so it is considered to have an effect of improving Damage hair.

• The Korea Journal of Herbology
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• v.34 no.6
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• pp.109-115
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• 2019

Objective : Herbal medicinal mixture (JMB) are consisted of Caryophylli Flos, Aucklandiae Radix, and Angelicae Dahuricae Radix. Each of these herbal medicines has studied on anti-aging effect in vitro. So this study was conducted to investigate efficacy and potency of JMB extract on dermal anti-aging and whitening. Methods : The JMB was extracted at room temperature by 80% ethanol. Collagenase and elastase inhibition activity in JMB ethanol extract were determined at 10, 50, 100, 500, 1000 mg/ml concentrations by colorimetric method. The toxic range of JMB ethanol extract was evaluated using MTT assay. Also, The inhibitory effect of JMB ethanol extract on tyrosinase activity and melanin contents in mouse melanoma cell line (B16F10 cell) was identified at 50, 100, 200 ㎍/㎖ levels by spectrometric assay. In each analysis, EGCG (epigallocatechin gallate) and Kojic acid were used as positive controls, respectively. Results : The elastase and collagenase inhibitory activity of JMB ethanol extract increased dose dependently. Also, The MTT assay showed that JMB, up to 400 ㎍/㎖ concentration, exhibited no toxic effect to the B16F10 cell. And following the JMB ethanol extract treat, cellular melanin contents and tyrosinase activity were dose-dependently decreased compared to those of control. Conclusion : These results suggest that JMB ethanol extract has effects to inhibitory activity on dermal wrinkle enzyme and melanogenesis. Therefore, JMB has applicable benefits for development of materials or products to have whitening and anti-aging functions on skin.

• Fashion & Textile Research Journal
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• v.24 no.6
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• pp.782-788
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• 2022

Our research participants were composed of health teachers exhausted by the COVID-19 pandemic. This study analyzed the attitudes towards image-making through utilizing the job training at Gwangju Metropolitan Office of Education on August 2022, where our study was able to obtain and analyze 30 elementary, middle, and high school health teachers who participated. Image making is defined as playing a role in increasing self-esteem through outward appearances such as facial expressions and posture, personal color, makeup, tone, hairstyling, and fashion and impacting individuals inwardly to increase self-confidence. Therefore, there is a positive impact in providing an image-making program that considers the occupational characteristics of a health teacher. It had the effect of stress relief and aided in building a healthier self-image among the participants. The results our study showed the following results. First, all participants had various concerns regarding their appearance and deemed that image-making was necessary, yet they needed to be more informed regarding the specific methods of doing so. Secondly, participants were mainly focused on purchasing makeup products for image making. Although participants showed interest in a personal color diagnosis, there needed to be more support in approaching the subject as the diagnosis was necessary from an expert. Third, participants stated that image-making should occur for their middle-aged selves when experienced in the field. Participants believed that they would be more concerned with how others viewed them after gaining expertise. Hence, this study found that the occupational characteristics of health teachers greatly benefitted from image-making programs oriented to their careers and would also show an increase in job satisfaction.

• Journal of the Korean Applied Science and Technology
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• v.40 no.1
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• pp.81-87
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• 2023

This study aims to investigate the difference in customer commitment according to the demographic characteristics of hair salon customers and the relational benefits of hairdressing business that affect customer commitment. The questionnaire for empirical research was collected from customers of hair salon in Gyeongnam, and the analysis results are as follows. First, as a result of analyzing the difference in customer commitment according to the demographic characteristics of hair salon customers, customer commitment was statistically high in the group of college graduates or higher and the group of men. Second, as a result of analyzing the causal relationship between relational benefits and customer commitment, it was found that customization benefits, social benefits, and psychological benefits of relational benefits had a statistical effect on customer commitment. In particular, it was found that psychological benefits had the strongest effect on customer commitment.

• Journal of the Korean Applied Science and Technology
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• v.40 no.1
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• pp.103-112
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• 2023

This study selected 9 species of domestic native plants (Baechohyang, Red Pine, Turmeric, Ginger, San parsley seed, Bulsugam, Hwangchil, Tangja, Valerian) that have been proven effective for depression, and based on the analysis results of each fragrance component, 9 species were selected. Antioxidant (DPPH, ABTS), cytotoxicity (MTS), and anti-inflammatory (Nitric oxide) experiments were performed by combining essential oils. As a result of the analysis of fragrance components, DL-Limonene (38.44%), g-Terpinene (8.9%), Estragole (5.18%), and a-Pinene (1.73%), which were previously studied in combination oil, were identified. DPPH radical scavenging ability, which is an antioxidant activity, showed 75.4%, ABTS radical scavenging ability was 74.04%, and NO production inhibition was 33.14% at a concentration of 5uL/ml with no cytotoxicity confirmed. Through this, the effect of domestic blending essential oils on the improvement or prevention of depression is verified, and scientific efficacy and ingredient studies are conducted in a mutually cooperative manner to seek solutions to depression and provide basic data to confirm whether or not depressive symptoms are improved. want to do.

• Journal of the Korean Society of Industry Convergence
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• v.26 no.2_2
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• pp.349-358
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• 2023

This study aimed to identify factors influencing awareness and interest in male nail care and nail art among people in their 20s and 30s, using a survey that included 390 men and women. The survey consisted of sub-factors, including awareness of appearance management, interest in nails, perception of male nail care and nail art, behavioral factors in nail care, and image factors in nail care. The results showed that the overall average interest in male nail care and nail art was 3.76, which fell between "average" and "yes". Women showed higher interest in male nail care than men did. While there was no statistically significant difference in the average value, interest in male nail care and nail art was higher among those in their 30s than those in their 20s. Unmarried individuals showed more interest in male nail care than married ones, and higher levels of education were associated with higher interest. In terms of occupation, service workers showed the highest interest in male nail care and nail art. In conclusion, the findings suggest the need for marketing research that caters to the development of services and programs targeting the male nail industry. The study also highlights the importance of segmenting and differentiating marketing strategies that target male and female customers with a high interest in male nail care and nail art. Based on these findings, this study aims to provide direction for the male nail care industry and serve as a basis for the development of customized programs. Additionally, it aims to provide basic data to aid in the development of the nail industry in Gyeongnam.

• Journal of the Korean Applied Science and Technology
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• v.39 no.2
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• pp.348-358
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• 2022

This study attempted to verify the influence of appearance satisfaction on interest in eye makeup and makeup care behavior in female consumers and provide basic data which are needed to plan marketing strategies and develop cosmetics in the cosmetics market. For this, a questionnaire survey was performed against adult women in their 20-50s from the capital region. A total of 399 copies were used for final analysis, and the results found the followings: First, differences were found in appearance satisfaction, interest in eye makeup and makeup care behavior by general characteristics. In other words, interest in eye makeup started with 'self-care', showing interest in chasing a trend. Second, concerning the effects of appearance satisfaction on interest in eye makeup, as the respondents were more satisfied with their facial contour, they were more interested in eye makeup. Third, in terms of the influence of appearance satisfaction on eye makeup care behavior, as they were more satisfied with their skin conditions, trend-setting makeup care behavior increased. Consequently, increase in appearance satisfaction enhanced interest in eye makeup, having an influence on makeup care behavior.

• Journal of the Korean Applied Science and Technology
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• v.39 no.2
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• pp.294-302
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• 2022

This study attempted to investigate the effect of improving damaged hair by preparing a hair improving agent with basil oil and applying it to damaged hair. An experimental material was added to a perm base agent containing 0 g, 3 g, 6 g, 9 g of basil oil to prepare the preparation. It was applied to sample hair bleached at 8 levels with the prepared formulation. Each sample and damaged hair were measured and analyzed. The measurement method measured tensile strength, absorbance and gloss using methylene blue to determine the effect of improving maternal quality. Statistical analysis was conducted on the reliability of the study results. Studies have shown that all samples with basil oil have higher tensile strength than damaged hair. As a result of the absorbance analysis using methylene blue, it was found that the absorbance was lower than that of damaged hair in all samples. Gloss measurement showed that all samples showed increased luster compared to damaged hair. In conclusion, basil oil was found to improve damaged hair. In the future, research on various types of oil and research methods is needed.

• The Journal of the Korea Contents Association
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• v.22 no.5
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• pp.667-684
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• 2022

This study analyzed the problems of skin beauty textbooks used in high school based on the NCS ability unit, and was to improve them. By the NCS standard, it focuses on the contents which can be learned during the high school course. The main results are as follows. First, the revision of textbooks is to contain NCS competency unit, which is excluded in spite of being taught. Second, Replacement is required for NCS 5 level beyond the high school. Third, the illustrated and photographic materials is revised to improve the understanding by maintaining consistency and visibility. Fourth, the contents on the practical skill need specific explanations and instructional materials. Fifth, to revise terminology and the notation system is needed in skin care. The results of this study can be used as basic data to develop an NCS learning module in the skin care field and high school textbooks.