• Journal of the Korean Applied Science and Technology
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• v.40 no.6
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• pp.1445-1453
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• 2023

In 2022, the domestic production performance of functional cosmetics in South Korea reached 4.6 trillion won, accounting for 33.85% of the total cosmetics production. The number of functional cosmetics reviewed increased by about 7.5% from the previous year, totaling 974 items. Especially with the increasing importance of the skin barrier function due to skin sensitivity caused by various environmental pollutants, domestic cosmetic companies are showing interest in the development of new ingredients and products related to this area. This study aims to analyze academic research trends related to in vitro experiments for the development of cosmetics improving the skin barrier, to provide practical information for the cosmetic industry. The findings are as follows: Academic research mainly focused on the efficacy of natural ingredients in improving the skin barrier, but there is a significant lack of quantitative accumulation of research. For the development of skin barrier-improving cosmetic ingredients, efficacy evaluation indicators were set, including hyaluronic acid production, expression of filaggrin gene, loricrin, formation of cornified envelope (CE), and expression of ceramide synthesis enzyme genes. Moreover, effective cosmetic ingredients for improving the skin barrier included lemongrass and perilla leaf extracts, flavonoids, Lactococcus lactis subsp. lactis, Exosomelike Nanovesicles derived from apple callus, Eleutherococcus sessiliflorus, Acanthopanax sessiliflorus, Eleutherococcus gracilistylus, Acer okamotoanum extracts, Aloe vera adventitious root extract, ethanol extract of Aruncus dioicus, and organic solvent fraction of Dracocephalum argunense.

• Journal of Korean Ophthalmic Optics Society
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• v.16 no.4
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• pp.391-401
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• 2011

Purpose: In the present study, the actual management state of trial contact lenses and lens care products in local optical shops was surveyed and analyzed to reduce the risk of lens complication possibly induced by neglecting lens care. Methods: The feeling of contact lens wearers during the wear of trial contact lenses was surveyed. Futhermore, the actual management state of trial contact lenses such as cosmetic lens and RGP lens and lens care products was also investigated by surveying opticians who trade contact lenses in local optical shops. Results: It was found that consumers trusted the sanitary conditions of the lens since trial cosmetic contact lens and RGP lens were cleaned before and after trails by over 98% of opticians in local optical shops. For trial cosmetic lens, cleaning with normal saline, multipurpose solution for soft lens and combination of saline and multipurpose solution were 38.5%, 40.5% and 21%, respectively, before trials. After trials, cosmetic lenses were cleaned with normal saline, multipurpose solution for soft lens and a combination of saline and multipurpose solution were 13%, 75%, and 12%, respectively. On the other hand, cleaning with normal saline, multipurpose solution for RGP lens and combination of saline and multipurpose solution were 28.5%, 38.5% and 33%, respectively, before trying trial RGP lens. After trials, RGP lenses were cleaned with normal saline, multipurpose solution for RGP lens and a combination of saline and multipurpose solution were 2.5%, 70%, and 27.5%, respectively, indicating that relatively many opticians followed the lens cleaning regimen. In local optical shops, the cleaning trial cosmetic lens was mainly conducted at every 10 days or a month and the washing cycle of cosmetic lens case was in a month or 2~3 months. The cleaning interval of trial RGP lens was primarily in a month or 2~3 months. For those lens cases, more than 75% of opticians washed them with a surfactant and then rinsed with cold water. The storing periods of lens care products were primarily in a week for saline and in a month and 2~3 months indicating that storing period of lens care products was relatively well-kept in local optical shops. Conclusions: It is thought that the concern about any microbial infection is not that high since trial contact lenses and lens care products were generally well-managed by opticians in local optical shops from the results above. However, better public eye health and better public confidence in opticians may be possible if further strengthen in avoidance of lens cleaning with saline, keep of cleaning cycles within 2 weeks and rinsing of lens cases with hot water happens.

• The monthly packaging world
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• s.294
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• pp.53-64
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• 2017

• Proceedings of the SCSK Conference
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• 1992.09a
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• pp.79-92
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• 1992

• Journal of the Korean Applied Science and Technology
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• v.26 no.3
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• pp.240-247
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• 2009

The purpose of this study is to develop a method to evaluate solubility parameter interactions of cosmetic ingredients in formulations. This experimentation relates to the fabrication of new multi-layer cleansing oil which can remove make-up products such as lipstick, foundation, mascara, eye shadow, etc., and also can wash away dirt and sebum from the skin just in one stage process. Solubility parameter and specific gravity of various cosmetic ingredients are measured to explain the cleanliness of interface, detergency of make-up cosmetics on the skin surface. The results suggest that it is possible for cosmetic chemists to use solubility parameter of cosmetic materials for fabrication of new formulation of 3-layer cleansing oil.

• Journal of Distribution Science
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• v.13 no.6
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• pp.45-70
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• 2015

Purpose - This study's purpose is to examine the effects of the country-of-origin antecedents on overall attitudes and the impact of overall attitudes on satisfaction and loyalty. Research design, data, and methodology - This study provides useful insights into international female purchasing behavior in the cosmetic industry in South Korea. This study explores the elements of country-of-origin antecedents, (cultural interest, perception of brand image, perception of fashion, perception of product quality, perception of price, and perception of advertising), on overall attitudes as well as the effect of overall attitudes on satisfaction and loyalty. Results - The results show that the effects of such antecedents are significant. Additionally, the effect of overall attitudes on satisfaction and of satisfaction on loyalty were significant. Conclusions - The findings of this study provide some important practical implications. First, with customer brand awareness growing along with products standards, considering the concepts points of parities and points of differences, the Korean cosmetic industry should try to establish brand associations with natural organic ingredients in its cosmetic items, distinguishing them from the majority of non-Korean brands.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.35 no.1
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• pp.1-9
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• 2009

South Asian's growing obsession with fair skin has made the cosmetic industry into a multibillion-dollar trade over the last decade alone. With reports of toxicity and potential mutagenicity of conventional skin lightening agents, cosmetic industries are looking for plant-based skin whitening formulations. In this review some potential depigmentation agents from South Asian region are discussed, including their historical background, biochemical characteristics and recent findings on their depigmenting activity.

• Proceedings of the SCSK Conference
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• 2003.09b
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• pp.280-285
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• 2003

The cosmetic industry associated L-ascorbic acid (LAA) or not with its salts and esters, to be employed for fighting the cutaneous aging process. In large part, in the segment of cosmetics, the salts and esters of the LAA alone are employed more frequently than the pure LAA, since the former are chemically more stable, but result in less effective products. The present work refers to a process for stabilizing LAA in an aqueous medium, which includes the step of placed the LAA in contact with Polyvinylalcohol (PVA) through weak force like Van der Waals interaction. The PVA provides stability for LAA aqueous solution, which is stable for 106 days with a LAA content decrease only of 10% w/v.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.45 no.4
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• pp.381-388
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• 2019

Recently, the importance of individual skin characteristic is emphasized for customized beauty products. There are many studies on the concept of the syndrome differentiation, related to individual cosmetics in Korean Medicine. However, skin characteristic according to Yin deficiency syndrome (YDS), which is associated with aging, are yet to be clarified. The objective of this study was to evaluate the skin characteristic and questionnaire of female with YDS compare to with non-YDS. 218 healthy females between 40 and 59 years of age were assessed for the skin hydration, elasticity, brightness (L^* value), redness (a^* value), pore, pigmentation, wrinkle, and sebum by Corneometerr^®, Cutometerr^®, and Janus lll. Independent t-test showed lower hydration, lower elasticity, and higher redness in the YDS group compared to the non-YDS group (all p < 0.05). There was significant difference on the facial fever, insomnia, decreased amount of urine, and skin sensitive checklist. These results suggested that using the questionnaire associated with YDS and skin characteristic could separate skin types and apply to customized beauty products.

• Journal of the Korean Society of Costume
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• v.57 no.3 s.112
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• pp.78-89
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• 2007

The objectives of this research were to investigate the relationships between purchase motives and post-purchase satisfaction of cosmetics at internet shopping malls, and to reveal how cosmetic purchase motives and demographic variables influence to the post-purchase satisfaction. Subjects were 202 females in Seoul who had experiences of cosmetic shopping at internet. Five dimensions of cosmetic purchase motives at internet shopping malls were derived by factor analysis: 'information provision', 'service/quality', 'time saver', 'use convenience', and 'economical efficiency'. Consumers showed relatively high cosmetic purchase motives at internet shopping malls because the prices of on-line shopping mall products were cheaper than those of off-line, and because it was easy to compare various products at internet shopping malls. The motive of 'information provision' had significant positive relationships with the satisfaction of price, quality, color, volume, and skin suitability of cosmetics. The motive of 'time saver' and 'use convenience' had positive relationships with the satisfaction of price and quality. The motives of 'service/quality' and 'use convenience' were higher in career women than in college women. The middle class consumers and the consumers who use internet more had a high 'information provision' motive in shopping cosmetics at internet. The post-purchase satisfaction of cosmetics was influenced most by the experience postscripts and next by economical efficiency, frequency of access to the internet cosmetic malls, and social class(-) in order.