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http://dx.doi.org/10.15230/SCSK.2016.42.3.279

The Study of Facial Hair Weakening Ability Using Urea or Anti-oxidants for Shaving  

Kim, Il Gu (R&D Center, LG Household & Healthcare, Ltd.)
Han, Na Kyung (R&D Center, LG Household & Healthcare, Ltd.)
Kim, Sun Young (R&D Center, LG Household & Healthcare, Ltd.)
Han, Jong Sub (R&D Center, LG Household & Healthcare, Ltd.)
Publication Information
Journal of the Society of Cosmetic Scientists of Korea / v.42, no.3, 2016 , pp. 279-284 More about this Journal
Abstract
In this study, facial hair weakening ability of urea and anti-oxidants for shaving was investigated. The hair weakening ability and cross-section increase of hair depends on concentration of urea. The results showed that urea affects swelling of hair and this is related to the hair weakening ability. Anti-oxidants showed outstanding weakening ability despite of their low concentrations by breaking disulfide bond in facial hair. To evaluate the suitability of urea and anti-oxidants for facial cosmetic products, in vitro safety tests were proceeded. The results showed that urea and glutathione were safe for face. As a result, urea and glutathione were safe and outstanding as hair weakening agent for cosmetic shaving products.
Keywords
urea; antioxidants; glutathione; shaving; facial hair weakening;
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  • Reference
1 Y. K. Kamath, C. J. Dansizer, and H. D. Weigmann, Wetting behavior of human hair fibers, J. Appl. Polym. Sci., 22(8), 2295 (1978).   DOI
2 R. Ogura, J. M. Knox, A. C. Griffin, and M. Kusuhara, The concentration of sulfhydryl and disulfide in human epidermis, hair and nail, J. Invest. Derm., 38(69) (1962).
3 U.S. Patent No. 4,528,111 A (1983).
4 U.S. Patent No. 8,663,614 B2 (2009).
5 U.S. Patent No. 9,220,666 B2 (2013).
6 U.S. Patent No. 5,756,081 A (1996).
7 U.S. Patent No. 5,562,110 A (1994).
8 U.S. Patent No. 4,956,175. (1990).
9 E. Tolgyesi, D. W. Coble, F. S. Fang, and E. O. Kairinen, A comparative study of beard and scalp hair, J. Soc. Cosmet. Chem., 34, 361 (1983).
10 L. Langbein, H. Yoshida, S. Praetzel-Wunder, D. A. Parry, and J. Schweizer, The keratins of the human beard hair medulla: the riddle in the middle, J. Invest. Dermatol., 130(1), 55 (2010).   DOI
11 U.S. Patent No. 5,154,918. (1992).
12 H. A. Bagshaw, J. T. Flynn, A. N. James, S. R. Johnston, and J. P. Blandym, The use of thioglycolic acid in hair-bearing skin inlay urethroplasty, Br. J. Urol., 52(6), 546 (1980).   DOI
13 B. Frei, Reactive oxygen species and antioxidant vitamins: mechanisms of action, Am. J. Med., 97(3), S5 (1994).   DOI