• The Korea Journal of Herbology
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• v.37 no.6
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• pp.53-59
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• 2022

Objectives : Cleanser is the most basic tools used in daily skin care. I made a cold process soap using Castanea crenata inner shell (CCIS). I'd like to study the effect of face wash using CCIS cold process (CP) soap on the skin. Methods : The same water and towel were used at the same place in order to examine the skin change state immediately before and after washing face. The skin test was performed before and after 10 minutes washing the face in order to remove these external environmental factors, such as lifestyle, alcohol, tobacco, and stress etc. As a control group, the cases of washing with water and foam cleanser (F/C), which is a popular commercial product, were set. Three cases were compared and analyzed. Results : In the case of water washing, there was a significant decrease in oil (U-zone) but that was not good effect. In the case of F/C and CCIS washing, there were significant decrease in oil (T-zone), pores and pigmentation, but the significance was bigger in CCIS washing. In the case of pores, there was a significant decrease in all three cases. Conclusion : In the case of F/C and CCIS washing, it showed the effect of reducing T-zone oil, pores and pigmentation. But the significance was greater in CCIS case than in F/C case. CCIS cp soap is considered as a form of face wash that is suitable for skin care.

• The Korea Journal of Herbology
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• v.38 no.3
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• pp.11-18
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• 2023

Objectives : This study aimed to investigate the effect of face washing on pore changes in a controlled environment without external condition changes. The research compared the results of water washing, foam cleanser (F/C) washing, and herb cp (cold process) soap washing on pore reduction. Methods : The experiment was conducted using the same water and towel, in the same place, before and 10 minutes after washing. The skin test was performed before and after washing, and three cases of herb cp soap were tested: Ginseng, Liriope platyphylla (LP), and Castanea crenata inner shell (CCIS). A control group was established using water and F/C washing. Results : Water washing and F/C washing showed a similar degree of pore reduction. Men and individuals with complex skin types showed significantly larger pores. LP cp soap showed the greatest significance in pore reduction. Conclusion : This study found that pore shrinking effects were observed regardless of the use of facial cleansers. LP cp soap was found to be the most effective in reducing pore size. It is important to emphasize the importance of face washing for individuals with large pores and combination skin types, especially men.