Research Paper : Effect of the Cosmetics Products Containing Aged Urine on the 40-60 Middle-aged Women`s Skin

Yun, Jung Hee; Kang, Sang Mo

Journal of the Korean Society of Cosmetology 2012;18(5):993-1002.
Published online October 31, 2012.

숙성 요(尿)에 의한 40-60대 여성의 안면피부 개선 효과

윤정희, 강상모

Research Paper : Effect of the Cosmetics Products Containing Aged Urine on the 40-60 Middle-aged Women`s Skin

Jung Hee Yun, Sang Mo Kang

Abstract

This study was conducted to investigate the effect of human-derived urine on the middle-aged women`s skin. The samples of 3-7year-old boy`s urine that was aged for three days was used in freeze-drying after dialysis. The subjects were housewife in their 40-60s middleaged women; a group of 10 students were selected for the dialyzed after three days urine group (DAU) and the other group of 10 students for the control group, which have general characteristics similar to the experimental group. The experiment has been conducted for a total of 8 weeks. When it comes to skin test, before the experiment and 8 weeks later after the first test, I measured the skin amount of keratin, melanin index, erythema index, SCE (L*, a*, b*), pores, pigmentation and wrinkles aroud eyes. In the results of analysis, in the case of a control group were all increased or not changed. On the other hand, DAU group showed decrease in variation of amount of keratin 49%(p<0.05), melanin index 17%(p<0.01), erythema index 12%(p<0.001), SCE a*(redness) 10%(p<0.01), pores 25%(p<0.01), wrinkles aroud eyes 11%(p<0.05) and to increased SCE L*(lightness) 5%(p<0.01), SCE b*(yellowness) 11%(p<0.01). Consequently, judging from the changes in the DAU group, it was confirmed that the ingredient of aged urine is very effective in improving skin. The results of this research can be used to demonstrate the potentials of aged urine applicated cosmetics.

Key Words: Aged urine, Skin, Cosmetics