Jung-Hee Lee

This study investigated changes in hair condition among women in their 20s after eight weeks of using a shampoo containing fermented lactic acid bacteria-derived ingredients and examined the change patterns in a control group using a conventional shampoo. Fifty women were assigned to an experimental group (n=25) using the test shampoo and a control group (n=25) using a conventional shampoo. Both groups shampooed once daily in the evening and refrained from using additional scalp or hair products during the study period. Hair density, hair count, and hair thickness were measured at baseline and after eight weeks using the ASM-202 (AI-Scalp Grader, Aramo Huvis, Korea) at six sites: the left hairline, front hairline, right hairline, frontal center, vertex, and occipital region. In the experimental group, hair density and hair count increased significantly at five sites, excluding the occipital region (p<.05 to p<.001). Hair thickness also increased significantly at the left, front, and right hairlines and the vertex (p<.01). No significant pre-post changes were observed in the control group. These findings indicate that significant favorable within-group changes in several hair condition parameters were observed after eight weeks of test shampoo use, whereas no significant pre-post changes were observed in the control group. As the present analysis focused on pre-post changes within each group, direct comparison of the magnitude of changes between groups warrants further investigation. The findings suggest the potential utility of the multi-ingredient test shampoo containing fermented lactic acid bacteria-derived and botanical ingredients as a hair-care formulation. However, because the test shampoo was a multi-ingredient formulation, the observed changes cannot be attributed solely to fermented lactic acid bacteria-derived ingredients. These findings provide preliminary evidence for the potential use of such formulations in hair care.

This study evaluated the improvement effects of an immune-tolerant exosome-containing cosmetic kit (Product A) used alone and in combination with a microneedle therapy system (MTS, Product B) on facial skin texture, brightness, elasticity, and density. A total of 21 healthy adults (2 males, 19 females; mean age 49.76±11.35 years) participated in a 4-week split-face comparative trial. Product A, a kit composed of a freeze-dried immune-tolerant exosome powder and an activator, was applied to the whole face once daily after cleansing, and Product B, a microneedle roller, was additionally applied to the left half of the face once daily. Facial texture (Texture small), brightness (intensity), elasticity (V3), and skin density (Density) were measured at baseline and after 4 weeks using ANTERA 3D, VISIA-CA, Cutiscan CS100, and DUB-SkinScanner, respectively, under standardized conditions (22±2°C, 50±5% relative humidity). Statistical analyses included the Shapiro-Wilk test for normality, paired t-tests or Wilcoxon signed-rank tests for within-site pre-post comparisons, and within-subject comparisons of the changes (Δ) between the two sites. In the A+B area, texture decreased from 8.58±1.49 to 7.58±1.29 (p<.01), brightness increased from 160.54±6.22 to 164.99±7.00 (p<.05), elasticity increased from 48.41±11.24 to 70.50±10.09 (p<.001), and density increased from 9.13±2.18 to 10.54±1.87 (p<.05). All four indices improved significantly in both areas, with significantly greater improvements in the A+B area than in the A-only area (p<.05). No adverse events were observed. These results suggest that the immune-tolerant exosome kit improves facial skin indices and that concurrent MTS use may enhance its skin-improving effects, although the absence of an MTS-only control should be considered when interpreting the additive effects.

Amid the rapid aging and the trend of self-development of active seniors, interest in healthy and beautiful aging is increasing. This study attempted to empirically analyze the effect of active seniors’ cosmetic usage behavior on psychological well-being and successful aging. To this end, a survey was conducted on 300 men and women aged 50 to 69 in the Jeolla-do region, and frequency analysis, factor analysis, reliability verification, correlation and regression analysis were performed using SPSS v.25.0. As a result of the analysis, the respondents consisted of 189 (63.0%) in their 50s, 111 (37.0%) in their 60s, 147 (49.0%) in men, and 153 (51.0%) in women. As a result of the study, it was found that cosmetics use behavior had a significant positive (+) effect on psychological well-being (competence, immersion) and successful aging (food life, cognitive and mental health, social support). Accordingly, the necessity of developing educational programs reflecting the characteristics of cosmetics use by age, psychological and emotional support programs, programs that support successful aging, and programs that provide customized beauty services are suggested.

This study examined skincare professionals’ awareness of Social and Emotional Learning (SEL), focusing specifically on self-awareness and self-management, the two SEL domains most closely related to emotional labor in the field. A survey was administered to skincare practitioners, and 250 valid responses were used for analysis. The measurement instrument was developed based on SEL theory and the characteristics of skincare work, and its validity and reliability were verified. The results indicated that within self-awareness, the highest score was observed for values, followed by emotion, self-concept, and interest. In the domain of self-management, motivation maintenance scored the highest, followed by behavioral regulation, emotion regulation, and goal setting. Higher age and longer work experience were associated with greater levels of emotional recognition and regulation, and participants with higher educational attainment demonstrated higher self-management scores. Additionally, self-employed practitioners showed higher levels of SEL awareness across both domains compared to employees. These findings suggest that SEL competencies play a crucial role in emotional regulation, job adaptation, and customer service within skincare practice. Accordingly, SEL education and practical training focused on emotional management and tailored to job stages and career levels are needed for this professional group. This study is limited by its regionally restricted sample and by its examination of only two SEL domains. Future research should investigate all SEL components and explore their structural relationships with job performance in greater depth.

In this study, we tried to understand the environmental awareness of consumers of concious beauty and to investigate the relationship with purchasing behavior. A total of 200 subjects were surveyed online to measure general characteristics, environmental awareness, and purchasing behavior. Data analysis is performed by SPSS v. US>Utilized the 25.0 program. As a result of frequency analysis, factor analysis, correlation analysis, and multiple regression analysis, the higher the environmental awareness, the higher the purchasing behavior (p<.001). Environmental issues (β=.244, p<0.01), environmental responsibility (β=.197, p<.05), environmental intentions (β=.195, p<.05), and environmental knowledge (β=.159, p<.05) were found to have statistically significant positive (+) effects on satisfaction. A sense of environmental responsibility by sub-factor of environmental awareness (β=.399, p<.001), environmentally friendly action intentions (β=.187, p<.05), and environmental problems (β=.160, p<.05) have statistically significant positive (+) effects on repurchase intentions. Environmentally conscious action intent (β=.258, p<.01), environmental responsibility (β=.207, p<.05), environmental issues (β=.158, p<.05), environmental knowledge (β=.136, p<.05), statistically significant positive (+) influence on this brand loyalty was found to be found to be significant.” These results suggest that the higher the environmental awareness of Conscious Beauty consumers, the higher the purchasing behavior. Subsequent research seems to require research on the consumption value felt by considered beauty consumers in the purchasing process.

In recent years, the rapidly aging society has seen the emergence of a new senior culture, with active seniors showing increased interest and effort in leisure activities and health management. Along with these changes, a lifestyle focused on health and happiness is spreading among active seniors. Notably, active seniors are actively investing in their health and appearance management, with a growing interest in beauty healthcare. Beauty healthcare behaviors provide various benefits beyond simple appearance management, including physical self-respect and psychological well-being, contributing to the improvement of active seniors’ quality of life. This study aims to analyze the impact of active seniors’ beauty healthcare behaviors on physical self-respect and psychological well-being. To this end, a survey was conducted on 200 men and women aged 50 to 69 residing in the Jeolla region. Data analysis included frequency analysis, exploratory factor analysis, Cronbach’s α coefficient calculation, descriptive statistical analysis, correlation analysis, and regression analysis. The analysis results showed that the age distribution was 114 (57.0%) in their 50s and 86 (43.0%) in their 60s, with 102 males (51.0%) and 98 females (49.0%). Beauty healthcare behaviors were found to have a significant positive effect on physical self-respect and psychological well-being. These findings suggest that this study can be used as valuable baseline data for policy development to improve the quality of life of active seniors in an aging society and for the development of the beauty healthcare industry.

The study examined changes in skin conditions in soap containing aromas. Aroma soap was produced by complying with the Ministry of Food and Drug Safety’s notice and cosmetics safety standards and commissioned by an aroma expert. The essential oils used in soap used in prior studies used rosemary, lavender, cedarwood, cypress, iran iran, juniperberry and peppermint. The subjects of the study were adult women between the ages of 20 and 59 and were conducted in two groups: 23 control group, 23 experimental group, and 23 experimental group. The control group used aroma-free soap and the experimental group used aroma-containing soap. The measurement was made once a week for four weeks after the use of aroma soap. The measurement area was forehead, nose, left and right cheek. The items were compared by measuring skin pores, redness, skin texture, sebum, popyrin ratio, and moisture. The measuring instruments were measured using skin measuring instruments PIECO., Ltd. (Gennes Pro SUNLIKE Korea). As a result of the measurement, there was a significant change in the effect of improving skin conditions in the experimental group. Although there were differences by site due to detailed effects, there were significant differences in pore improvement effects (p<.01), redness improvement effects (p<.05), skin texture improvement effects (p<.01), sebum improvement effects (p<.05), and popyrinby improvement effects (p<.05). These results proved that the right choice of facial cleanser affects the improvement of skin conditions, and aroma essential oils can be effective for face washing in addition to nutritional absorption cosmetics. Therefore, this study is significant in that it demonstrates the effectiveness of facial cleansers on the skin, and details the basic methods and order for skin care and the scope of expansion of aroma utilization.

In this study, changes in hair condition after using aroma shampoo bars were investigated. Aroma shampoo was produced in the form of a bar (100 g) by complying with cosmetic safety standards in accordance with the Ministry of Food and Drug Safety notice. The essential oils used in aroma shampoo bars were lavender, juniper berries, cypress, peppermint, cedarwood, ylang ylang and rosemary as reference to previous studies. The subjects of this study were adults in their 20s or older, and consisted of two groups: a control group, 23 people and the experimental group, and 23 people. Aroma-free shampoo bars were used as the control group, and an aroma-containing shampoo bar was used as the experimental group. Measurement was measured once a week for 4 weeks before and after use. The hair measurement site is the top of the head, occipital region, left and right sides of the forehead. Measurement was performed with Aram Hubis’ ASG (AI-Scalp Grader). As a result of the study, there was a significant increase in hair condition changes in the density and number of the left forehead and occipital regions in the experimental group using aroma shampoos. This study has academic and social significance in that cleaning products, not products that nourish hair, can positively change hair condition and that it proved the effect of essential oils with quantitative data.

The importance of sleep is being emphasized as interest in improving health and quality of life increases. In particular, the use of aroma oil has been expanded as a complementary therapy for sleep disorders. Aroma oil can be selected according to individual preferences and characteristics because it has various effects depending on the type. Therefore, the use of aroma oil suitable for individual preferences and characteristics can have a positive effect on the sleep habits of modern people who value health. Therefore, it is necessary to revitalize the beauty industry by developing customized aroma products based on the diversity of health-related lifestyle habits. In this study, 200 adult women over the age of 20 living in Jeollabuk-do were surveyed for general characteristics, sleep habits, sleep habits type, differences in sleep habits according to general characteristics, aroma oil aroma preference, and aroma oil aroma preference according to sleep habits and general characteristics. For the analysis, frequency analysis, factor analysis, cluster analysis, cross-analysis, independent sample t-test, one-way variance analysis, and Duncan test were used using the SPSS program. As a result of the analysis, it was found that there was a significant difference in aroma oil preference according to the final academic background and sleep habits of the subjects. In particular, high school graduates tended to prefer the scent of rosemary, the sleep-type group preferred the scent of lemon and lavender, and the insomnia group preferred the scent of rosemary. As such, it was confirmed that individual sleep habits and aroma oil preference were closely related. This is a study that proves the need for aroma product development and marketing, and is intended to be provided as basic data for revitalizing the beauty industry.

This study will identify the scent preference of cypress essential oil, which is widely planted in the southern region to develop tourism products in Gwangju Metropolitan City, and will be provided as basic data for the development of the tourism industry. The subjects of the study were collected from physically healthy people among adults aged 20 or older among Gwangju Metropolitan City residents, and a survey was conducted from October 06, 2023, to October 26, 2023. In the fragrance preference survey of aroma essential oils, 'No.1(Lemon)' (M=3.88) was the highest overall in single fragrance, followed by 'No.6(Jasmine)' (M=3.26), 'No.5(Geranium) (M=3.25), 'No.3(Lavender)' (M=2.83), 'No.7(Hinoki)' (M=2.74), and 'No.2(Roman)' (M=2.26). In addition, 'No.1' (M=3.32) was the highest overall mixed scent, followed by 'No.3' (M=3.25), 'No.6' (M=3.15), 'No.5' (M=3.13), 'No.2' (M=3.07) and 'No.4' (M=2.96) with an average of 3.15 points. In addition, there was a significant difference depending on gender between No. 5 and No. 6. Through these results, supplementary research is expected to be needed through an expansion study that increased the number of samples of gender and residential areas of survey subjects in the future to provide basic data on tourism product development using aroma essential oil scent preference surveys.