• Journal of the Korea Convergence Society
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• v.11 no.8
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• pp.223-228
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• 2020

The need to steadily manage healthy hair for a beautiful hairstyle is emerging, and it is time to develop hair cosmetics using natural antioxidants that are harmless to the human body according to the needs of the times. Therefore Max. Load, Max. Stress, Max. Elongation, and breakage on the hair coated with the extract of Ginkgo biloba L. According to the Break Load, Break Stress, Break Elongation, Max. Various convergence property experiments such as modulus and Tangential modulus values were conducted. As a result of research, the hairs coated with Ginkgo biloba extract had an overall increase in intrinsic properties including tensile strength compared to the control group. Through this study, we intend to study the potential of Ginkgo biloba L. as a useful material for hair cosmetics such as permanent wave preparations as well as health supplements and medicines that have been released, and we expect that it will be provided as useful research data for the subsequent development of various hair cosmetics.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.50 no.1
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• pp.11-18
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• 2024

Recently, there have been attempts to claim the hair moisturizing effect for a hair care product, however there has not yet been an official evaluation method because heating temperature for hair has not been established. This study was conducted to establish a quantitative evaluation for hair water content. In order to observe the behavior of water inside hair, heat was applied to hair with various temperatures using thermogravimetric dry residue. As the heating temperature increased, the amount of moisture released from the hair increased. As a result of evaluating hair using a differential scanning calorimeter (DSC), a unique phenomenon in which a rapid endothermic reaction occurs around 75 ℃ was observed. This phenomenon was also observed in different ethnic hair. In hair that damaged the hair cuticle barrier with oxidation and heat, this rapidly rising endothermic reaction temperature occurred at 77 ℃, which was slightly higher, and 73 ℃ was observed when this hair was applied with polar oil, conditioning polymer, or keratin protein. To determine how this reaction affects the hair surface, friction test was performed using an atomic force microscope. When heated above 75 ℃, cuticle friction increased, however when heated above 90 ℃, there was no change in hair cuticle friction. Finally, it was confirmed that around 75 ℃ is the critical temperature at which desorption of water bound to the hair occurs. It is suggested that a heating temperature of 75 ℃ is the optimal temperature for detecting and quantifying the moisture content of hair, and that approximately 10% detected at 75 ℃ can be a standard value for hair moisture content.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.30 no.1
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• pp.103-116
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• 2004

The goal of this study was to get the basic data for the domestic cosmetic industry, through analyzing female college ,students’ responses to cosmetic care of hair and their behavior, and their preference for hair cosmetics and brands. In their level of understanding and concern of hair cosmetic care, as well as their general knowledge, ‘dyed or decolorized hair’ types had the highest response rate at 49％, followed by ‘permanent wave’ type at 39％. Thus they were very interested in hairdressing-related operations, and even they made an attempt to do it directly. In the ways and management for dealing with harmful side effects caused by dyeing, decolorizing, or permanent, 74.7％ of the respondents experienced adverse effects, as well as having complaints, after permanent wave. Of the complaints 245 students experienced, ‘hair damage’ was the highest rate of 42.4％, followed by ‘unsatisfied with hair style’ at 19.8％. From the above results, female college students showed a various interest in hair cosmetic care; however, they had little knowledge in this regard. Accordingly, it is necessary to educate them for the segmentation of hair cosmetics and the appropriate hair care, to meet their diversified cosmetic needs which becomes diversified, and to offer them the correct information of hair beauty.

• Journal of Convergence for Information Technology
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• v.11 no.3
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• pp.212-219
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• 2021

The current study aimed to find the effects of hair treatment with shea butter on bleached hair and hair protection. The agent for hair treatment with shea butter was developed in different concentration levels (0%,1%,3%,5%) for experimentation. After applying the agent to bleached hair, hair samples were evaluated as follows. Increase in hair thickness was highest in the hair sample that had 5% of shea butter. The amount of amino acids was also highest in the hair sample that contained 5% of shea butter. Comparing the difference of the surface color, hair sample with 5% of shea butter showed low level of L⁎ while the level of a⁎ value that reflects the redness was high and the level of b⁎ value that reflects yellowness was low. Observation through the scanning microscope confirmed the positive effects by showing smoother surfaces in the sample with shea butter than in the bleached hair. This study showed shea butter is considered to be cosmetics to protect damaged hair by bleaching.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.7 no.1
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• pp.1-18
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• 1979

인삼(人蔘)사포닌으로 처리(處理)한 모발(毛髮)의 인장강도(引張强度)와 신장도(伸張度)를 collagen 가수분해물(加水分解物)로 처리한 모발(毛髮)과 비교(比較)하였다. 모발(毛髮)에 인삼(人蔘)사포닌 흡수량(吸收量)은 high speed liquid chromatography로 측정(測定)하였으며 liquid scintillation counter로 확인(確認)하였다. 모발(毛髮)에 collagen 가수분해물(加水分解物)의 흡수량(吸收量)은 모발(毛髮)을 collagen 가수분해물(加水分解物) 용액(溶液)속에 침적(沈積)시켰을 때 처음 30분(分) 동안은 많은 량(量)의 흡착(吸着)이 일어났으나 1시간(時間) 경과후(經過後)부터는 더 이상(以上)의 증가(增加)는 보이지 않았다. 이와는 반대(反對)로 인삼(人蔘)사포닌의 경우(境遇)는 침적시간(沈積時間)의 증가(增加)에 비례(比例)하여 흡수량(吸收量)의 증가(增加)를 나타내었다. 실험결과(實驗結果)는 인삼(人蔘)사포닌이 collagen 가수분해물(加水分解物) 보다 모발(毛髮)에 더욱 효과적(效果的)임을 보여 주었고, 그리고 인삼(人蔘)사포닌의 모발(毛髮)에 대(對)한 흡수(吸收)와 인장강도(引張强度)의 증가(增加)는 모발(毛髮)의 strain-stress곡선(曲線)과 인삼(人蔘)사포닌의 계면활성(界面活性)에 의(依)해 설명(說明)하였다.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.48 no.4
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• pp.385-392
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• 2022

In this study, keratin peptides were produced through high-temperature anaerobic fermentation of keratin, a protein contained in deer antler, with Fervidobacterium islandicum AW-1, and factors related to human hair, confirming the possibility of keratin peptides as cosmetic ingredients. As a result of the cytotoxicity and proliferation of deer antler fermented keratin peptide according to the concentration in the dermal papilla cell line, cytotoxicity was not observed and the cell proliferation effect was shown. For human dermal papilla cells, statistically significant increasing in growth factors according to the deer antler fermented keratin peptide was determined possiblity of effects on hair growth. Cosmetic products containing deer antler fermented keratin peptides were manufactured and skin safety and anti hair loss efficacy clinical tests were conducted. As a result, after 12 weeks of use, the total number of hairs statistically significant increased compared to before using the product and the difference in total number of hairs compared to the control group was found. In conclusion, we suggest that the possibility of fermented deer antler keratin peptide as a cosmeceutical ingredient as well as a health functional food material was confirmed.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.39 no.1
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• pp.25-30
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• 2013

The use of protein-crosslinking enzyme, transglutaminase, as a biocatalyst in the processing of hair offers a variety of exciting and realistic possibilities which include improving the rigidity of hair fibers. Among the transglutaminases from many different living organisms, the microbial enzyme prepared from Streptomyces mobaraensis, significantly increased the tensile strength of hair by 15.64% compared to a control when it was applied to damaged hair. This indicates that transglutaminase can restore the negative effects of washing hair with shampoo. Also transglutaminase improved the characteristics of hair surface, which could be useful for increase of luster and reduction of friction force of hair surfaces.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.49 no.3
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• pp.225-230
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• 2023

In this study, the porous structure inside the hair were observed using an optical microscope without damaging the hair, and the porosity inside the hair was quantitatively expressed using the results. Experiments were conducted on the effect of the decrease in density inside the hair on the bending and tensile properties of the hair, and experiments on endogenous and extrinsic factors were conducted to find out the causes of the decrease in density inside the hair. As for the endogenous factor, the porosity of gray hair, one of the representative symptoms of aging, was compared with normal hair. As for extrinsic factors, it was observed that the internal density of hair decreased by surfactant and heat, which are factors that can cause hair damage in daily life. In addition, we confirmed whether it is possible to increase the internal density and luster of the hair by using an amino acids and material that can prevent hair lipid predisposition.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.288-295
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• 2021

This study was conducted to investigate the effect of end paper adsorbed with mask pack active ingredients on hair during permanent wave treatment. Permanent wave was performed with purchasing mask packs containing green tangerine, collagen, and Houttuynia cordate active ingredients among commercially available mask packs and adsorbing them to the end paper. As experimental methods, hair thickness, hair moisturizing power, tensile strength, hair epidermis observation using SEM, and hair constituent element analysis using EDS were performed. As a result of the experiment, it was confirmed that the experimental group treated with Houttuynia cordate active ingredient on the end paper had a hair protection effect as a result of hair thickness, tensile strength, hair epidermis observation, and hair component analysis. In addition, it was confirmed that the experimental group treated with green tangerine active ingredient on the end paper contained a relatively large amount of moisture in the hair moisturizing power test result. It is hoped that the development and research of various materials and tools will proceed so that basic cosmetic products containing active ingredients can be developed and used as hair cosmetics, and applied during chemical treatment in the industrial field.

• Journal of the Korean Society of Costume
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• v.52 no.8
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• pp.99-107
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• 2002

The purpose of this study was to identify the hair management behavior and satisfaction of hair care products of women. A self-administered questionnaire developed by researchers was used. The subjects were 500 women who were residing in Chonbuk province from Aug. to Sep. 2002. Frequencies, percentages, means, and standard deviations were calculated. And One-way ANOVA and t-test were done. The results were as follows : 1. Most women were satisfied with the condition, gloss, and thickness of their hair, but unsatisfied with their hair color. As they were getting older, their satisfaction were lowered about their hair condition and gloss. 2. Most women went to beauty shops once or twice a month to have their hair permanent waved or cut. and some for dyeing or dry Few women went to beauty shop for make-up and peticures. 3. Women did frequent hair management behaviors such as cleansing, style, and providing nutrition, but caring dandruff and preventing alopecia were relatively less. Older or married women did more frequent hair management behaviors such as caring dandruff, preventing alopecia, dyeing, styling, and providing nutrition. Women used cleansing products to manage their hair, and styling products and nutrients to provide their hair with nutrition. 4. Specially price and efficiency satisfaction of dandruff care products, alopecia preventing products, dyeing products were very low.