Earticle

The fragrance is volatile and is prone to radical reactions by light or heat. In particular, theby-products generated by radical reactions are likely to be harmful to the human body. In addition, overexpression of free radicals is known to cause various pathophysiological disorders such as cardiovascular disease, diabetes, ischemia, anemia reperfusion injury, coronary atherosclerosis, Alzheimer's, cancer, as well as aging. Therefore, accurate harmful component quantitative analysis is necessary for the fragrance.In this study, the results of gas chromatograph-mass spectrometer (GC-MS) and gas chromatographic-vacuum ultraviolet (GC-VUV) analysis were compared. In addition, to reduce the generation of harmful substances in natural and synthetic fragrances, the experiment was conducted to prepare and analyze synthetic fragrances. We synthesized fragrances and developed eco-friendly fragrances through quantitative analysis of harmful ingredients by GC-VUV.As a result of this study, it was confirmed that harmful substances of benzene are detected through GC-MS and GC-VUV in natural fragrance analysis. As a result of the synthetic fragrance analysis, unlike the natural fragrance, no harmful substances of benzenes were detected, but it was confirmed that butyric acid methyl ester, which was not detected by GC-MS, was detected as a by-product in GC-VUV analysis. As a result of controlling the content of ethyl butyrate, the concentration of butyric acid methyl ester decreased as the ratio of ethyl butyrate decreased.In this study, we were able to synthesize natural fragrances with low content of harmful substances. GC-VUV is expected to be useful for analysis of harmful substances in perfumery and cosmetic fields along with GC-MS.

Based on the preceding papers using peelings for acne treatment, this study analyzes the preference and satisfaction of acne treatment according to the type of peeling, the prior study on acne treatment effects using chemical peeling, and the current status of awareness and management of acne treatment methods, and it is necessary to develop a proper treatment program according to acne skin condition using chemical peeling, through the recognition and management of acne treatment methods. Through development and technology improvement, we hope that appropriate peeling methods depending on acne skin condition can be selected and utilized as the basis for accurate treatment methods and education systems.

Natural fragrances were extracted from Chrysanthemum indicum L. belonging to asteraceae, native to Korea, variously used as medicinal plants. Extraction methods were extracted by solvent extraction and supercritical fluid extraction. The solvent of the solvent extraction method was ethanol and ether, and the supercritical extraction method was performed using only supercritical carbon dioxide and supercritical carbon dioxide with cosolvent ethanol. The extraction was carried out in total four conditions. The fragrance extracted according to the conditions was qualitatively analyzed by GC-MS to derive fragrance components. In addition, since it is used directly on the skin when used as a perfume raw material, ICP-MS is used to determine the heavy metal content of four types of nickel (Ni), arsenic (As), cadmium (Cd), and lead (Pb) confirmed. In order to determine whether the Chrysanthemum indicum L. fragrance is applicable not only to perfumes but also to various functional cosmetics, functional characteristics such as antimicrobial and antioxidant effects of the extracts were studied. The fragrance extracted by solvent extraction yielded 0.63% when using ethanol and 1.89% when using ether based on 70g of raw materials. The fragrance extracted by supercritical extraction yielded 2.41% using supercritical fluid only and 5.30% using supercritical fluid with cosolvent. As a result of GC-MS qualitative analysis of the extract, the components with the smell of Herbal and Floral were commonly detected as 2-pinene, eucalyptol and camphor. According to the sensory analysis of fragrances, we received the highest scores in the 'light' and 'soft' scores. Antimicrobial experiments confirmed that all four conditions had antimicrobial activity against staphylococcus aureus As a result of this study, the highest yield condition was found in the perfume extraction process, and the Chrysanthemum indicum L. perfume is expected to be useful for functional cosmetics applied to the skin.

Based on the preceding studies, this research is intended to analyze the service quality status of beauty shop owners and consider their relationship with customer satisfaction. The purpose of these studies is to provide basic data for improving the quality of beauty services by providing a way to efficiently cope with the customer’s intention to revisit and buy again. The prior study on quality improvement of beauty service and customer satisfaction was collected and reviewed to analyze the impact of quality of service on customer satisfaction, the impact of customer satisfaction on repeat visits, and factors affecting improvement of beauty service quality. As the customer satisfaction level increased due to the higher quality of the service, customers tried to select predictable services to minimize the risk associated with the purchase of the service, as the level of quality of service experienced by the customer may vary depending on the service provider’s knowledge and ability to solve problems such as spontaneity. They said that they feel satisfied with the quality of service when they show consideration and interest such as comfort and convenience facilities as a motive for revisiting, and that they will continue to develop customized beauty service programs to select and train talented employees, standardize beauty service processes, and develop customized beauty service programs to improve beauty service quality in the future.

Cosmetics are products that come into direct contact with the skin, which inevitably leads to high interest in natural ingredients that are harmless to the human body. Among these natural cosmetics, many basic cosmetics such as skin lotion are on the market, but mascara products, which are color tone cosmetics, are not noticeable. Mascara is a colored cosmetic that has strong contact with the eyes to stimulate the health of the eye. In particular, the use of mascara has many examples of eye health problems, which are analyzed for the effects of heavy metals contained in raw materials used in colorimetric materials.In this study, we applied research on coffee beans, which are natural materials instead of black iron oxide used as black pigment in mascara, and studied the possibility of products as mascara and the safety of heavy metals. The coffee bean extract extracted from 60-90% ethanol was analyzed by Gas chromatography-mass spectrometry (GC-MS) at the first stage. In 90% ethanol, various other ingredients besides caffeine are detected, and the detected ingredients decrease as the proportion of ethanol decreases. As a second step, mascara was produced using coffee beans extracted with ethanol. For mascara production, for comparative analysis, black iron oxide which is a raw material of commercially available mascara and coffee bean extract extracted with ethanol were produced and compared and analyzed. In the third step, the functional aspects of commercially available mascara and coffee bean mascara were confirmed and the substance properties were compared and analyzed. The color tone was measured using a color difference meter and the viscosity was analyzed using Viscometry. In the fourth step, mascara made of bean extract was analyzed by inductively coupled plasma mass spectrometry (ICP-MS) to determine heavy metals including Lead (Pb), Nickel (Ni), arsenic (As). As a result, the manufactured mascara identified a tendency for the heavy metal content to decrease as the raw bean extract content increases.The results of this study showed that color and texture of coffee bean - containing mascaras were not significantly different from commercial mascaras. And Through ICP-MS analysis, the content of heavy metals is lower than that of graphite iron. ATherefore, as a result of this study, mascara containing the proto-head extract can be applied as a natural mascara and is expected to be applied to the research of color tone cosmetics such as mascara in the future.

The purpose of this study is to present the optimal dyeing time for each material through scientific experiments on the premise that the dyeing and dyeing amounts are different by dyeing time even for natural dyes of the same color material. For this purpose, the dyeing and dyeing amount of the hair surface were measured by the dyeing time of each dyeing material using five materials of yellow white, gardenia, turmeric, lump and marigold, which are used as representative yellow-based natural dyeing materials. K / S (surface dyeing concentration; dyeing amount) and L *, a *, b * values at the maximum absorption wavelength were measured.