• Journal of Applied Biological Chemistry
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• 제52권2호
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• pp.84-87
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• 2009

• Archives of Plastic Surgery
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• 제43권4호
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• pp.316-320
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• 2016

Cosmetic lateral canthoplasty, in which the size of the eye is increased by extending the palpebral fissure and decreasing the degree of the eye slant, has become a prevalent procedure for East Asians. However, it is not uncommon for there to be complications or unfavorable results after the surgery. With this in mind, the authors have designed a surgical method to reduce complications in cosmetic lateral canthoplasty by preserving the lateral canthal angle. We discuss here the anatomy required for surgery, the surgical methods, and methods for reducing complications during cosmetic lateral canthoplasty.

• 환경위생공학
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• 제13권1호
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• pp.104-111
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• 1998

This study was performed to investigate the contents of preservatives in cosmetic lotions and creams. The 55 kinds of creams and the 45 kinds of lotions were tested, and the 6 kinds of preservatives such as sorbic acid (SA), benzoic acid (BA), methlparaben(MP), ethylparaben(EP), propylparaben(PP) and butylparaben(BP) were determined for domestic and foreign cosmetics by high performance liquid chromatography(HPLC). The recovery rates of methanol extraction and distillation method were respectively the range of 84.82 - 99.62% and 17.47 - 79.91% for the spiking concentration of 1.2% in the cosmetic lotions. Excellent isolation was showed at the wavelength of 230nm for 6 kinds of preservatives. Preservatives were detected for all tested samples and their concentration were not exceeded in cosmetic combination limits. Paraoxybenzoate esters(MP, EP, PP, BP) were used in the 98.0% of samples and not less than 2 kinds of preservatives were used in samples.

• Toxicological Research
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• 제31권2호
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• pp.105-136
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• 2015

Polyethylene glycols (PEGs) are products of condensed ethylene oxide and water that can have various derivatives and functions. Since many PEG types are hydrophilic, they are favorably used as penetration enhancers, especially in topical dermatological preparations. PEGs, together with their typically nonionic derivatives, are broadly utilized in cosmetic products as surfactants, emulsifiers, cleansing agents, humectants, and skin conditioners. The compounds studied in this review include PEG/PPG-17/6 copolymer, PEG-20 glyceryl triisostearate, PEG-40 hydrogenated castor oil, and PEG-60 hydrogenated castor oil. Overall, much of the data available in this review are on PEGylated oils (PEG-40 and PEG-60 hydrogenated castor oils), which were recommended as safe for use in cosmetics up to 100% concentration. Currently, PEG-20 glyceryl triisostearate and PEGylated oils are considered safe for cosmetic use according to the results of relevant studies. Additionally, PEG/PPG-17/6 copolymer should be further studied to ensure its safety as a cosmetic ingredient.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제5권4호
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• pp.353-359
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• 2005

In this research, we propose a Unified Fuzzy rule-based knowledge Inference Systems (UFIS) to help the expert in cosmetic brand detection. Users' preferred cosmetic product detection is very important in the level of CRM. To this purpose, many corporations trying to develop an efficient data mining tool. In this study, we develop a prototype fuzzy rule detection and inference system. The framework used in this development is mainly based on two different mechanisms such as fuzzy rule extraction and RDB (Relational DB)-based fuzzy rule inference. First, fuzzy clustering and fuzzy rule extraction deal with the presence of the knowledge in data base and its value is presented with a value between 0 -1. Second, RDB and SQL (Structured Query Language)-based fuzzy rule inference mechanism provide more flexibility in knowledge management than conventional non-fuzzy value-based KMS (Knowledge Management Systems).

• 대한화장품학회지
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• 제38권1호
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• pp.51-55
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• 2012

포름알데히드는 그 자체가 보존제로 또는 다른 보존제로부터 유리된 형태로 화장품에 일반적으로 존재한다. 포름알데히드는 낮은 농도로도 민감한 피부 반응을 일으킬 수 있으므로 화장품에서 그 사용을 규제하고 있다. 본 연구에서는 팩 및 마스크와 같은 화장품 114 품목을 시중에서 구입하여 포름알데히드의 함량을 분석하였다. 검사 품목의 36%에서 $0.3{\sim}9.7{\mu}g/mL$ (ppm) 수준의 포름알데히드가 검출되었다. 포름알데히드 유리 보존제를 함유한다고 표시되어 있는 12개 제품의 포름알데히드 함량을 조사하였다. Imidazolidinyl urea를 사용한 화장품 10품목과 1,3-Dimethylol-5,5-dimethylhydantoin (DMDM hyantoin)을 사용한 화장품 2품목에서 평균 $1.7{\mu}g/mL$ (ppm)의 포름알데히드가 검출되었다. 식품의약품안전청 고시 최대 허용 포름알데히드 농도 0.2 % (2,000 ppm)을 고려할 때, 이번 조사에서 분석한 화장품에서는 비교적 낮은 수준의 포름알데히드 함량을 보였다.

• 대한화장품학회지
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• 제45권4호
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• pp.381-388
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• 2019

개인의 피부특성을 반영한 화장품에 대한 관심이 증가함에 따라 본 연구에서는 개인의 특성을 분류하기 위해 한의학 변증(辨證) 개념을 도입하여 피부특징 및 대상자 특성을 구분하고자 하였다. 변증 중 노화와 관련 있는 음허(陰虛)변증을 선정하였고, 건강한 40대와 50대 여성 218명을 음허변증으로 구분하여 피부특성과 설문응답패턴을 분석하였다. 피부특성은 Corneometer^®, Cutometer^®, Janus lll 측정기기를 활용하여 보습, 탄력, 모공, 주름, 색소침착, 피부색 및 피지 항목을 측정하였다. 설문은 음허설문지(yin-deficiency questionnaire, YDQ)와 피부상태설문지(modified skin type questionnaire)로 구성되어 있는데, 음허변증 여부에 따른 교차비(odds ratio) 분석과 유의한 피부특성 차이를 나타내는 설문 분석의 두 단계로 구분하여 분석하였다. 그 결과, 음허로 변증된 집단은 아닌 집단에 비해 보습과 탄력이 감소하고, 피부 붉기가 증가하는 유의한 차이를 확인하였으며, 얼굴 열감과 불면, 신체 수분 감소 항목에서 불편감을 호소하였고 피부 민감성 항목과 연관이 있음을 확인하였다. 본 연구 결과를 활용하여 음허변증과 관련된 설문 중 수분, 탄력, 붉기의 피부특성을 나타내는 설문을 바탕으로 해당 고객에게 제품을 추천할 수 있을 것으로 사료된다.

• Korean Chemical Engineering Research
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• 제50권4호
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• pp.610-613
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• 2012

본 연구에서는 삼백초 추출물 25%, 뽕나무 줄기추출물 20%, 닥나무 줄기추출물 20% 등을 함유한 복합수목추출물의 화장품소재로서의 이용가능성을 검토하였다. 소재 시험으로는 세포독성시험, 엘라스타제 억제효과시험, 티로시나제 억제효과시험, 항산화효과시험 및 온도 안정성시험이 실시되었다. 복합수목추출물은 세포독성이 낮았으며, 우수한 엘라스타제 억제효과와 항산화효과를 보여주었으나 티로시나제 억제효과는 다소 낮았다. 추출물을 함유한 스킨, 로션 및 에센스 제형을 제조하여 온도 안정성시험 결과 스킨과 에센스 제형은 우수한 안정성을 보여주었으나 로션은 상분리가 관찰되고, 점도의 변화가 심하여 제형의 변경이 필요한 것으로 나타났다. 따라서 삼백초 추출물, 뽕나무 추출물 및 닥나무 추출물을 함유한 복합수목추출물은 화장품소재로서 응용 가능성이 높음을 알 수 있었다.

• 한국약용작물학회지
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• 제28권5호
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• pp.331-338
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• 2020

Background: The aim of this study was to analyze the total phenol and total flavonoid contents and antioxidant activity of steam-treated leaves and rhizomes of Polygonatum sibiricum Redoute. In addition, we aimed to confirm their potential use as cosmetic materials by investigating their anti-aging and skin-whitening activity. Methods and Results: The leaves and rhizomes of P. sibiricum were treated with steam at different temperatures for different durations, and the antioxidant activity (DPPH and ABTS radical scavenging activity) and total phenol and total flavonoid contents of each sample were tested. The steam temperature and treatment duration siginificantly affected the antioxidant activity and, total phenol and total flavonoid content of the leaves and rhizome of P. sibiricum. Treating the P. sibiricum samples with steam at 120℃ for 12 h, yielded higher total phenol and total flavonoid contents. Comparatively, the samples treated with steam at 120℃ for 12 to 24 h showed significantly higher antioxidant activity. Further, the steamed samples of P. sibiricum demonstrated collagenase and tyrosinase inhibition activity, which indicated their anti-aging and skin-whitening properties. The samples steamed at 120℃ for 12 h, exhibited higher collagenase and tyrosinase inhibition activity. Conclusions: Leaves and rhizomes of P. sibiricum steamed at 120℃ for 12 h, showed highest antioxidant activity and, total phenol and total flavonoid contents than all other samples. Our results indicate the potential of using P. sibiricum as a cosmetic material by confirming its excellent anti-aging and whitening activity.

• 복식
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• 제57권9호
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• pp.97-109
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• 2007

This study is to examine the relation between self-consciousness and appearance management behavior; to grasp the appearance management behavior depending on self-consciousness which older women feel personally; to understand their needs more deeply; and to give support in planning and conducting marketing strategies effectively in the beauty and fashion market. The subjects of this study were aged women ranging 55 to 69 in age, living in Daegu and Geongsangbukdo. 500 questionnaires were distributed and 397 questionnaires out of 440 returned were used in the data analysis. The results through statistic analyses are following: 1. Among older women, the higher social self-consciousness group appeared to pursue six types of appearance management behavior(i.e., weight body-shape care, skin care, cosmetic behavior, hair care, cosmetic surgery, and clothing behavior) much more than the lower social self-consciousness group. 2. Compared with the lower private self-consciousness group, the higher private self-consciousness group appeared to care for not only weight body-shape care but also skin care, cosmetic care, and cosmetic surgery, clothing behavior with more interest in ordinary times. In terms of hair care, though, there was no significant difference between the higher private self-consciousness group and the lower private self-consciousness group. 3. There was no statistically significant difference between the higher social anxiety group and the lower social anxiety group in weight body-shape care, skin care, cosmetic behavior, hair care, cosmetic surgery, and clothing behavior.