• Journal of the Korean Applied Science and Technology
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• v.31 no.1
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• pp.120-129
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• 2014

The structure and physiological function of human skin continuously weaken due to growing older. The reasons of aging from external conditions are long term exposure to sun, wind, heat, cigarette smoke, and etc. This also palmitoyl oligopeptide or ceramide oligopeptide are known asc ingredient stimulating collagens and have the effect of reproducing the upper level of skin. Acetyl hexapeptide is an ingredient that makes the skin and muscle suppler and reduces wrinkles. It is a major high function beauty ingredient that substitutes botox. After dividing 7%, 14%, and 20% Acetyl hexapeptide experimental groups as groups A, B, and C the control group and experiment groups' change of wrinkles, hair follicles, moisture content, and dead skin cells was analyzed. According to the results, Acetyl hexapeptide seems to affect wrinkles, hair follicles and moisture content contrasting to the control group. Experimental groups and control group showed similar change in dead skin cells. In contrast to the control group satisfaction of examines was affected in wrinkles, hair follicles and moisture but removing dead skin cells had similar result in experimental groups and control group.

• Journal of the Korean Applied Science and Technology
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• v.34 no.3
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• pp.536-544
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• 2017

This study was carried out to find out the physiological activity effect of Sicyos angulatus L. extract which is known as an ecosystem disturbance plant and confirm the availability as a functional cosmetic material. Total polyphenol and flavonoid contents were measured, and DPPH radical scavenging, intracellular ROS, and its inhibitory effect on the expression Nitric oxide of and COX-2 were evaluated. The content of polyphenol and flavonoid was found to be 3.079 mg(CA)/100g and 72 mg(Q)/100g of Sicyos angulatus L. extract and antioxidant activity through high radical scavenging activity was confirmed. ~Significant cytotoxicity was not observed up to a concentration of $100{\mu}g/mL$ in RAW 264.7 cells and HDF cells and concentration-dependent inhibition of ROS production in HDF cells, inhibition of high NO production and inhibition of COX-2 protein expression in RAW 264.7 cells were confirmed. Through these results, we found the possibility of use as a functional cosmetic material with excellent antioxidant effect and antioxidant and anti-inflammatory effects through inhibition of intracellular ROS generation, inhibition of NO generation, and inhibition of COX-2 protein expression.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.10
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• pp.4378-4384
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• 2011

In order to evaluate the anti-oxidative capabilities of Angelica dahurica Radix ethanol extract (ADEE), we analyzed the contents of polyphenol and flavonoid compounds and the electron donating ability from ADEE. For animal experimentation, the test agent was topically applied to the artificial tanning spots which were induced by 1,500 mJ/$cm^2$ of ultraviolet B radiation on the backs of brown guinea pigs weighing approximately 450~500g. The test agent of $30{\mu}{\ell}$ was applied (6areas per group) twice a day, five days a week, for five weeks. On completion of the experiment, the animals were sacrificed under anesthetization, and the artificial tanning spots were obtained by biopsy punch and stained with H&E to observe the histological change in the epidermis and dermis. As a result, the contents of polyphenol and flavonoid compounds in ADEE were 20.7mg/g and 19.5mg/g respectively. As the for electron-donating capability of ADEE, it was observed that ADEE displays a dose-dependent antioxidative capacity of 14.8% and 19.8% at the concentration of 500 and 1000 ${\mu}g/m{\ell}$ respectively. Tissue staining with H&E revealed that the epidermis of the control group was slightly thicker than that of the other groups. However no inflammation or any other undesirable effect on the skin tissue due to ADEE was observed. These results indicate that ADEE is of value as a natural antioxidant.

• Journal of the Korean Applied Science and Technology
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• v.31 no.4
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• pp.703-710
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• 2014

The following is the study result of herbal tea roasted at different temperatures between $80{\sim}140^{\circ}C$. Depending on treatment temperature the water content decreased, some carbonization occurred and crude ash content relatively increased. Also crude protein and crude fat decreased little. Solid elution rate of herbal tea showed 0.15~0.32%(w/w) and the rate of solid elution decreased with higher roasting temperature. There was no big change in $80{\sim}110^{\circ}C$ treatment section but the solid elution decreased rapidly in $110{\sim}140^{\circ}C$ section. The reason for decreasing solid elution rate at higher treatment temperature is because the compact inner tissue makes elution difficult. Benzopyrene content (0.29~0.51ppb) showed a tendency to increase with higher treating temperature. From this result, the $B({\alpha})P$ content differed depending on the treatment temperature and raw materials. In case of roasting, the actual inside temperature is around $200^{\circ}C$ but since the surface temperature of the roaster reaches around $2000^{\circ}C$ some portion of $B({\alpha})P$ content was presumed to be produced from the area that came in contact with this surface. When the processing which is a main component of food carbohydrate, protein, fat reason despite serve heat treatment as a whole is to be detected even though the $B({\alpha})P$ in this way is considered to be.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.4
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• pp.1749-1755
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• 2011

This study aimed to identify the effect of make-up education on the life satisfaction of elderly women based on a make-up education session for eight weeks from May 28 to July 16, 2010 provided to elderly women aged 60 or above who visited P Seniors' Welfare Center in D city. 80 samples were divided into the experimental group of 40 people and the control group of 40 people based on age and interest in make-up. Their life satisfaction level was identified before the survey. The experimental group received an eight-week make-up education session. In order to verify effects of the make-up education, follow-up tests were conducted toward the experimental and control groups both to compare life satisfaction levels. The make-up education was divided into elegant and natural make-up, make-up to look ten years younger, face-changing make-up, seasonal (spring, summer, autumn, and winter) make-up, make-up for Korean traditional costumes, and party make-up. In each class, students practiced make-up on their face while taking a lecture on theories. After the education, the students found the education satisfactory overall. Based on the results, the life satisfaction of the experimental group who received the make-up education significantly increased (p<0.05), confirming that make-up education affects the life at old age.

• Journal of the Korean Applied Science and Technology
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• v.36 no.1
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• pp.73-83
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• 2019

The purpose of this study was to compare and analyze the differences and satisfaction of each purchase behavior by classifying cosmeceutical and medical cosmetics. A total of 861 questionnaires were distributed to males in their 20s to 50s (from 1 march 2017). A total of 446 respondents with experience using cosmeceutical cosmetics and medical cosmetics used as the final analysis material. According to the study, the term recognition for cosmeceutical cosmetics and medical cosmetics was very low. The differences in each purchase behavior were not statistically significant. but cosmeceutical cosmetic products have been found to have a significant impact on quality, price, container design, and service satisfaction among purchase preference factors (p<0.05, p<0.01, p<0.001), In particular, it was found that satisfaction with quality was the greatest. Medical cosmetics have been found to have a significant positive (+) effect on brand image, price, and container design among purchase preference factors (p<0.01, p<0.001), It was also found to have the biggest satisfaction with the brand image. Based on the results of this study, The features of cosmeceutical cosmetics and medical cosmetics are subdivided. It has been deemed necessary to develop differentiated products according to each purchase behavior and preference.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.5
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• pp.363-371
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• 2019

In this study, 340 Korean women were surveyed to analyze the impact of the type of sunscreen and use status on the satisfaction of products and resale. Studies have shown that indoor activity is higher than outdoor activity, and both simple and complex sunscreen is often used to compensate for skin tone. Out of single sunscreen, sun cream was used and air cushion was used a lot. Although product usability and UV protection indices were important factors in purchasing, 30% experienced side effects while product satisfaction and willingness to repurchase were high. The recognition of safety, Effectiveness, convenience, usability, satisfaction, and repurchase were all higher than that of composite UV-blocking products, and among subcomponents of product usage recognition, the level of convenience, efficacy, usability, and safety affected satisfaction and repurchase in order. Consequently, the perception of simple UV protection products was higher when using products for UV protection, and its convenience had a significant impact on satisfaction and resale.

• Journal of the Korean Applied Science and Technology
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• v.34 no.3
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• pp.568-576
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• 2017

As interest in functionality and environmentally friendly cosmetics is growing in recent years, materials that use safe and effective plant extracts have been developed. Therefore, this study also attempted to check the possibility of the graviola extract, which is known to have various efficacy mainly as a health functional material as a functional cosmetic material. In order to find out the antioxidant activity of graviola, we measured total polyphenol, total flavonoid content and DPPH radical scavenging activity and measured the ROS activity inhibition effect and cytoprotective effect on oxidative stress by treating HDF with hydrogen peroxide cells at an appropriate concentration after checking cytotoxicity in HDF cells. Based on the results of this experiment, the graviola extract was found to contain as high as 26.6 mg(CA)/100g, 14.3 mg(Q)/100g of total polyphenol and flavonoid, which are the antioxidant indexes and to have the high radical scavenging activity. The cell survival rate of the HDF cells was measured, and as a result, no significant cytotoxicity was observed at all concentrations and the experiment was carried out at a concentration of $100{\mu}g/mL$ afterwards. Inhibition of ROS activity in HDF cells induced by hydrogen peroxide was measured and the concentration-dependent inhibition of ROS activity was found and the cell protection effect of graviola was measured after hydrogen peroxide was treated for 4, 24 and 48 hours. As a result, the cell protection effect as high as 89.92% was confirmed at a $25{\mu}g/mL$ concentration up to 24 hours. As these results show that the graviola extract has excellent antioxidant activity, almost no toxicity to HDF cells, an effective activity inhibitory effect on active oxygen generated by hydrogen peroxide and excellent cytoprotective effect, the possibility as various functional materials with antioxidant and cytoprotective effects was confirmed.