Credits to:http://keshveda.blogspot.com/2010/06/understanding-human-hair.html
http://www.hairformula37.com/chemistry.htm
http://www.odec.ca/projects/2005/wali5s0/public_html/root.htm
http://itech.dickinson.edu/chemistry/?p=376
http://www.google.co.kr/imgres?imgurl=http://www.top-hair-loss-remedy.com/images/hair-structure.gif&imgrefurl=http://www.top-hair-loss-remedy.com/hair-structure.html&usg=__FchCI6yVjlbSdhTr4xig33iTYYA=&h=228&w=287&sz=19&hl=ko&&zoom=1&tbnid=g5R_9lg0QfPkpM:&tbnh=161&tbnw=203&ei=l_PgTf79IoWmuAObm_i2Bg&prev=/search%3Fq%3Dhair%2Bdiagram%2Blayers%26um%3D1%26hl%3Dko%26newwindow%3D1%26biw%3D1213%26bih%3D632%26tbm%3Disch&um=1&itbs=1&iact=hc&vpx=177&vpy=94&dur=2021&hovh=182&hovw=229&tx=101&ty=67&page=1&ndsp=16&ved=1t:429,r:0,s:0&biw=1213&bih=632
http://www.mastey.net/teinture/index.php?p=65 http://swiftcraftymonkey.blogspot.com/2010/05/chemistry-of-your-hair-quick-summary.htmlhttp://newlynatural.com/blog/2009/05/quotes-about-hair/
http://asianposes.com/img/posts/confused%20Gu%20Ji%20Sung.jpg
http://www.hairformula37.com/chemistry.htm
http://www.odec.ca/projects/2005/wali5s0/public_html/root.htm
http://itech.dickinson.edu/chemistry/?p=376
http://www.google.co.kr/imgres?imgurl=http://www.top-hair-loss-remedy.com/images/hair-structure.gif&imgrefurl=http://www.top-hair-loss-remedy.com/hair-structure.html&usg=__FchCI6yVjlbSdhTr4xig33iTYYA=&h=228&w=287&sz=19&hl=ko&&zoom=1&tbnid=g5R_9lg0QfPkpM:&tbnh=161&tbnw=203&ei=l_PgTf79IoWmuAObm_i2Bg&prev=/search%3Fq%3Dhair%2Bdiagram%2Blayers%26um%3D1%26hl%3Dko%26newwindow%3D1%26biw%3D1213%26bih%3D632%26tbm%3Disch&um=1&itbs=1&iact=hc&vpx=177&vpy=94&dur=2021&hovh=182&hovw=229&tx=101&ty=67&page=1&ndsp=16&ved=1t:429,r:0,s:0&biw=1213&bih=632
http://www.mastey.net/teinture/index.php?p=65 http://swiftcraftymonkey.blogspot.com/2010/05/chemistry-of-your-hair-quick-summary.htmlhttp://newlynatural.com/blog/2009/05/quotes-about-hair/
http://asianposes.com/img/posts/confused%20Gu%20Ji%20Sung.jpg