• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.7
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• pp.311-318
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• 2016

This study conducted a 4-week clinical trial on 30 males suffering from seborrheic dermatitis and hair loss symptoms to examine the effects of rooibos extract on the seborrheic dermatitis improvement of 30-50 year old middle aged males. The comparison group used shampoo with no rooibos extract while experiment group 1 used shampoo including rooibos extracts, and experiment group 2 used shampoo and scalp enhancer including the rooibos extracts. The results showed that there were no meaningful changes on the scalps of the comparison group while experiment group 2, which used both shampoo and scalp enhancer including rooibos, showed better improvement on seborrheic dermatitis than experiment group 1 which only used shampoo including rooibos. These results imply that shampoo and scalp enhancer including rooibos extracts effectively improve the oil-moisture balance on seborrheic dermatitis and effectively deals with scalp itchiness redness and the color tone of the scalp, suggesting its use in scalp cosmetics that include antioxidation activation elements, which are effective in improving seborrheic dermatitis.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.4
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• pp.373-381
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• 2016

To investigate the influence of hand cream of domestic and foreign brands on the purchase tendency, a survey was conducted on hand cream application, purchase tendency, and perception of 105 women in a metropolitan area. Market research was then conducted to compare the hand cream cost, quantity, and total substance, and the hand creams were sorted according to high-price and low-price, and foreign brand and domestic brand, and a clinical demonstration was conducted by back-hand application on 17 recipients to analyze the moisture and skin oil differences and the moisture endurance. As a result, the percentage of subjects who perceived that the price and brand of hand cream affects the quality was higher than those who did not, and the hand cream prize per 1mg (g) varied as much as fourfold among the high-price and low-price, and among foreign and domestic brands. The result of the total substance comparison, glycerin the moisturizer and cetearyl alcohol the skin conditioner were included in all hand creams. As a result of the clinical demonstration, the difference in moisture and skin oil difference and moisture endurance between the high-price and low-price and foreign brand did not show a statistically significant difference. These results show that there are no relationships between skin moisture and sebeum of the brand. Therefore, considering that hand cream is a highly consumptive product that is used multiple times on a daily basis, these results might provide fundamental data that could contribute to the increase in hand cream product quality by determining the consumers' needs.