• Title/Summary/Keyword: skincare

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Whitening Effect of Black Tea Water Extract on Brown Guinea Pig Skin

  • Choi, So-Young;Kim, Young-Chul
    • Toxicological Research
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    • v.27 no.3
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    • pp.153-160
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    • 2011
  • To evaluate the whitening effect of black tea water extract (BT), BT was topically applied to artificially hyperpigmented spots on the back skins of brown guinea-pigs (weight: 450~500 g) induced by 1,500 mJ/$cm^2$ of ultraviolet B (UVB) irradiation. The test compounds of 30 ${\mu}l$ were applied twice a day, six days a week, for four weeks. The artificially hyperpigmented spots were divided into 5 groups: control (UVB + saline, C), vehicle control [UVB + propylene glycol: ethanol: water (5 : 3 : 2), VC], positive control (UVB + 2% hydroquinone, PC), experimental 1 (UVB + 1% BT), experimental 2 (UVB + 2% BT). After 4-week application, the spots were removed by biopsy punch under anesthetic condition and used as specimens for the histological examination. The total polyphenol and flavonoid contents of BT were 104 and 91 mg/g, respectively. The electron-donating ability of BT revealed a dose-dependent response, showing the excellent capacities of 86% at 800 ${\mu}g$/ml. The artificially hyperpigmented spots treated with the PC and BT were obviously lightened compared to the C and VC groups. At the fourth week, the melanin indices for the PC and BT groups were significantly lower (p < 0.001) than those of the C and VC groups. In histological examination, PC and BT groups were significantly reduced in the melanin pigmentation, the proliferation of melanocytes and the synthesis of melanosomes compared to the C and VC groups. It is found that BT inhibits the proliferation of melanocytes and synthesis of melanosomes in vivo using brown guinea pigs, thereby showing a definite skin whitening effect.

A Study on the Proximity of Cosmetic to Self by Self-Efficacy (자기효능감(自己效能感)에 따른 화장근접도(化粧近接度)에 관(關)한 연구(硏究))

  • Jo, Ki-Yeu;Yoo, Tai-Soon
    • Journal of Fashion Business
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    • v.3 no.1
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    • pp.104-112
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    • 1999
  • The purpose of this study was to examine the proximity of cosmetic to self by self-efficacy. The scales used in this study include the scale of Sherer, Mercadante, Maddux, Rrentice-Dunn, Jacobs and Rogers(1982) for general and social self-efficacy, the scale of Ryckman, Roddins, Thorton, and Cantrell(1982) for physical self-efficacy, and the scale developed by the researcher for proximity of cosmetic to self. The subjects of this study were 885 adult women in Taegu. The data collected were analyzed by using MANOVA, ANOVA, and the Cronbach $\alpha$ reliability was also applied. The results of this study were summarized as follows: The persons with high general self-efficacy showed high degrees of joy of change in the sub-factors of proximity of cosmetic to self, while there was no difference in social confidence, skin care, self-satisfaction and instrument of disguise between persons with high general self-efficacy and those with low general self-efficacy. In addition, the persons with high social self-efficacy showed high degree of social confidence, skin care, joy of change, self-satisfaction and instrument of disguise in the sub-factors of proximity of cosmetic to self. And the persons With high physical self-efficacy had high degrees of joy of change and disguise. In the sub-factors of proximity of cosmetic to self, while there was no difference in the social confidence, skin care, self-satisfaction between persons with high physical self-efficacy and those With low physical self-efficacy.

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The Study on the Health of Aroma Therapeutist (아로마 시술자들의 건강실태에 관한 연구)

  • Kim, Mi-Ok;Suk, Kui-Duk
    • Korean Journal of Human Ecology
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    • v.17 no.1
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    • pp.171-179
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    • 2008
  • This study focuses on 130 estheticians currently working in and around Daegu and Gyeongbuk region, in order to find out the current state of affairs and side effects related to aromatherapy. This paper is based on a survey. SPSS win 11.0 program was used for the analysis of descriptive statistics and independent t-test. According to the result of analysis, about 33% of the estheticians have had allergy experience. And in terms of installation of an air ventilation fan, which is the most important facility in an treatment room, more than half (50.8%) replied they did not have one. There was a statistically significant difference between those estheticians suffering from allergy and those who did not, in symptoms of stuffy nose/rhinitis (P<0.01) and dry skin/itchiness (P<0.5). (Allergy symptoms from the 33% of estheticians were limited to those which occurred after he or she began career) On work related symptoms, those who had work history at hospitals/clinics or apothecaries were compared. A statistically relevant difference was confirmed between those estheticians with therapy experience and those who had none, in all symptoms except headaches and drowsiness/weariness. In other words, there was difference in symptoms such as dryness of skin/itchiness (P<0.01), stuffy nose/rhinitis, dry throat, tension/nervousness, dizziness, tired eyes(P<0.5), nausea, having trouble with focusing, and fatigue(P<0.1). Those estheticians who had a history of treatment especially suffered most from dryness of skin and itchiness. The rate of regular check-ups and the use of masks, employed for self protection, was lower than average (amounting to 5 points), with the use of masks especially having the lowest average (1.7) points.

Anti-oxidant and Anti-pollution Composition Containing the Extract of Nypa fruticans Wurmb, Saussurea neoserrata, Codium fragile and Enteromorpha compressa

  • Choi, Go-Eun;Lee, Gil-Hyun;Hyun, Kyung-Yae
    • Biomedical Science Letters
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    • v.26 no.3
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    • pp.157-163
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    • 2020
  • Long-term exposure to environmental pollutants can impair the human skin's barrier function and promote skin aging mechanisms. The visible consequences of these effects are dryness, wrinkles, black spots and worsening skin sensitivity. As awareness of the effects of environmental stressors on the skin has recently increased, consumers' demand for cosmetics that can provide anti-pollution effects is increasing. In this study, the possibility of anti-pollution cosmetic material was investigated by measuring the inhibitory effect of free radicals using a mixture of Nypa fruticans Wurmb (NF), Saussurea neoserrata (SN), Codium fragile (CF) and Enteromorpha compressa (EC), which has anti-inflammatory and antioxidant effects against irritation caused by dust. Combining the experimental results of a mixture of NF, SN, CF and EC by induction of fine dust stimulation, inhibition of inflammatory factors (PGE2) and intracellular free radicals (ROS) by inhibiting effects were significant, indicating the possibility of use as anti-pollution cosmetics. The most plants used as sources of anti-pollution cosmetic ingredients contain antioxidants as active substances. In our highly industrialized and chemically polluted world, it is not surprising that most plants used as sources of anti-pollution cosmetic ingredients contain antioxidants as active substances. Considering our results, it can be suggested that this anti-pollutant consisting of NF, SN, CF and EC may be a good ingredient for skincare products for the cosmetic industry due to their antioxidant properties, which may especially alter skin aging.

Analysis of previous researches on beauty attitude (뷰티 태도 관련 기존 연구의 분석)

  • Choe, Ji Hye;Kim, Mi Young
    • The Research Journal of the Costume Culture
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    • v.24 no.6
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    • pp.756-776
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    • 2016
  • The concern over beauty is increasing as the importance of appearance is becoming more prominent. Accordingly, the importance of studying beauty is now apparent. The purpose of this study is to analyze existing beauty-related research in order to assess current trends in beauty-related studies. Materials were collected from the master's theses and academic journals from 1997 through 2016. In addition, 81 beauty-related papers were selected and classified into 3 categories according to their subjects and content. There were 19 hair attitude papers, 52 papers about make-up and skincare, and 10 papers on cosmetic surgery. Each type was divided into detailed themes according to the study theme and its number was grasped. Consequently it was classified into 9 themes about the attitude toward hair and the relevant variable study, 10 themes about the attitude toward hair style and relevant variable study, 24 themes about the make-up attitude and relevant variable study, 28 themes about the skin care attitude and relevant variable study, and 10 themes about the cosmetic surgery attitude and relevant variable study. The results revealed that academic concern about beauty sharply increased starting in 2005. Moreover, we determined that the methodologies used in hair and make-up studies were sound and detailed, while cosmetic surgery studies were more inconsistent and poorly analyzed. Thus cosmetic surgery should be further researched in a more standardized and thorough manner. This review of attitudes toward beauty will serve as a basis for follow-up studies that employ meta-analyses to draw more quantitative conclusions by aggregating many more study results.

Study on the Immune Modulatory Activity of Seokjahaeki-tang Using Atopic Dermatitis Animal Models (아토피피부염 동물 병태 모델에서 석자해기탕(石紫解肌湯)의 면역조절작용에 관한 연구)

  • Lee, Byung-Woong;Gim, Seon-Bin;Song, Hyang-Hee;Ji, Joong-Gu;Bak, Ji-Won;Kim, Dong-Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.4
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    • pp.446-454
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    • 2012
  • In order to evaluate the efficacy of SHT against atopic dermatitis (AD), various immune related cytokines as well as histological comparison were performed in animal models, and the results are described. Clinical skin index of the SHT treated group decreased significantly in weeks 11 and 13, compared to the control group. Also, CD4+ immune cell ratio in the dorsal skin was significantly decreased to 69%, and both epidermal and dermal skin thickness was decreased. Serum IL-4, IL-5, IL-6, IL-13, and TNF-${\alpha}$, which are all important markers of inflammation, were decreased to 64%, 44%, 87%, 48%, and 45%, respectively. The expression of histamine, a chemical transmitter increasingly released during the progression of inflammation, was significantly decreased to 47%. The production of IgE immunoglobulin was significantly decreased to 16% compared to the control group. In conclusion, SHT pacifies the activation of T cells, leading to suppression of both Th2 cytokine overexpression and infiltration of immune cells into skin. As a result, relative thinning of both epidermis and dermis were observed. With the results obtained from in vitro studies, the immune modulatory effect of SHT in AD animal models was experimentally demonstrated. This study should provide solid information to construct EBM and for clinical practice.

Body Mass Index, Dietary Intake, Serum Lipids and Antioxidant Status of Young Females (여대생의 BMI에 따른 식이섭취와 혈중지질 농도 및 항산화능)

  • Bae Hyun-Sook
    • Korean Journal of Community Nutrition
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    • v.11 no.4
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    • pp.479-487
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    • 2006
  • Many epidemiological and observational studies show that distorted body image of normal body weight is widespread among Korean young females. This study was performed to evaluate the prevalence of overweight and underweight of young females and, to compare nutrient intakes, body composition, serum indices (lipids, MDA: Malondialdehyde, TAS : Total Antioxidant Status) with different BMI groups. The subjects were 75 university students in Seoul. We divided the subjects into 3 groups according to their BMI by IOTF guideline (UW: underweight group, BMI < 18.5, NW: normal body weight group; 18.5 $\leq$ BMI < 23.0, OW: overweight group; BMI $\geq$ 23.0). Data on dietary intakes, body compositions and serum indices were obtained in 3 groups. Differences on all of the above variables were assessed by body weight groups. Using IOTF guidelines, the prevalence of overweight and underweight in young females were 23%, 61%, 16% respectively. $\beta$-carotene and vitamin A intake of UW were significantly higher than that of NW (p < 0.05). Fiber intakes of NW was significantly higher than that of W (p < 0.05). But intakes of energy and the other nutrients were not significantly different among BMI groups. Calcium and folate intakes were 75%, 61% of KDRIs. Serum TGs were significantly higher in OW than that of NW, UW (p < 0.05), but level of MDA and TAS were not significantly different. The association of overweight and low intake of $\beta$-carotene and vitamin A may be one of many factors predisposing obese females to a high risk of oxidative stress later in life. This requires urgent nutritional intervention programs involving enough intake of fruit and vegetables, with modification of inappropriate dietary habits.

AStudy on Appearance Management Behavior Related to Well-being lifestyles of Women

  • Lee, Ji-Young;Kim, Yong-Sook
    • International Journal of Costume and Fashion
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    • v.7 no.2
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    • pp.1-17
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    • 2007
  • The purpose of this study was to identify appearance management behavior related to well-being lifestyle of women. The results of the study were as follows: 1. The factors relating to a well-being lifestyle were personality and value, fashionable appearance, leisure activity, healthy food, brands, social activities, reasonable consumption, environmental protection, and individuality. The factors of appearance management behavior were weight management and skin care, apparel and accessory management, dietary treatment, bathing, make-up and hair styling, underwear management, using hospitals, beauty salons, and identity kits. 2. Women were classified into 4 kinds of groups: well-being, reasonable value pursuit, ostensible consumption, and bad-being. 3. The members of the well-being group were generally married, highly educated, had a high income, and spent a lot of money for their appearance management. They had a high level of appearance management in terms of weight and skincare, apparel and fashion accessories management, dietary treatment, bathing, make-up and hairstyling, underwear management, and in the use of hospitals and beauty salons. The members of the reasonable value pursuit group were generally married, less educated, with a medium income, and spent little for their appearance management. Members of the ostensible consumption group were generally unmarried, with a low income but spent lot of money for sundries and appearance management. They also had a high level of appearance management with regard to weight training and skin care, apparel and fashion accessory management, underwear management, the use of hospitals and beauty salons, and using identity kits. Members of the bad-being group were generally unmarried, had low incomes, little disposable income, spent little on appearance management, and didn't manage their appearance as a whole.

A Study on the Aesthetics of Women's Body in the Chinese Republican Period -Focused on Women's Magazines, Funüzazhi & Linglong- (민국시기 중국 여성들의 인체미 의식에 대한 연구 -푸뉘자즈(부녀잡지(婦女雜誌))와 링롱(영롱(玲瓏))을 중심으로-)

  • Lee, Soon-Jae
    • Journal of the Korean Society of Clothing and Textiles
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    • v.37 no.3
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    • pp.357-370
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    • 2013
  • The Republican Period of China (1912 to 1949) was when the archetypes of thought (constituting contemporary China) engaged in heated rivalry and were directly influenced by Korea through frequent exchanges. This study analyzes the characteristic of Chinese women's aesthetics towards the human body with a focus on visual materials (such as articles and illustrations concerning hairstyle, makeup, skincare, fashion, and gymnastics) featured in the Chinese women magazines of Fun$\ddot{u}$zazhi (婦女雜誌) and Linglong (玲瓏). This study analyzes these magazines and compares them with Korean counterparts. The movement of the developed and controlled human body was a common characteristic of this period; however, compared to the Chinese, the Japanese colonial period of Korea resulted in an introspective self-examination through excessively objectified eyes. Dress and adornment as the symbol of a new civilization acted as the most remarkable signifier. The overlapping of a western image with a Japanese image led to more resistance in Korea. The criterion for the value of a women's external appearance (that traditionally dualized womanly virtues) collapsed and dress was accepted as an expression of individuality instead of as a social class. The human body was traditionally recognized as a microcosm of the universe that dominated the natural principle of Yin-Yang and the Five Elements. However, the ideal human body was postulated and the aesthetic consciousness of the body changed into an imaginary view of the human body that proceeded to keep the body fit for and gave birth to the concept of supplementing the deficiency of the beauty of the human body with dress and makeup.

The Development of a Cosmetics Educational Convergence Program for Free-Semester System (자유학기제 화장품교육 융합프로그램 개발)

  • Kang, Hyun-Mi;Jung, Yeon-Ja
    • Journal of the Korea Convergence Society
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    • v.8 no.3
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    • pp.283-294
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    • 2017
  • This study developed and proposed a cosmetics education program for middle school students for the free semester policy. The program was conducted for 20 sessions, two hours per week, based on theories and practice, and the teaching-leaning plan was made in the order of introduction, development, and summary. Through the program, students will have an opportunity to recognize the problems of misusing cosmetics and importance of the skin. Also, the program was developed in a way that encourages students to actively participate in the education so that it can lead to career development in the social and technical aspects. This study can provide basic data for students to acquire knowledge and practical education related to skincare and cosmetics use in the future.