- On a normal scalp there are about 100 to 150 thousand hair fibers.
- A blonde head of hair has usually much more fibers than red or dark haired heads.
- Hair consists mainly of keratin, which is also responsible for the elasticity of fingernails.
- A single hair has a thickness of 0.02-0.04mm, so that 20 to 50 hair fibers next to each other make one millimeter. Hair is strong as a wire of iron. It rips after applying a force equivalent to 60kg, after it is stretched to 70%.
- The root of a hair fiber sticks into something like a bag in the skin. The fiber is pushed out of this bag about 0.35mm per day; making an average growth rate of 1cm, or half of an inch, per month. The growth rate is however very much related to the individual person, his/her age, his/her diet etc.
- Healthy hair has an average lifetime of 2-6 years.
This entry was posted
on Sunday, December 10th, 2006 at 4:57 pm and is filed under Natural Hair Styles.
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- On a normal scalp there are about 100 to 150 thousand hair fibers.
- A blonde head of hair has usually much more fibers than red or dark haired heads.
- Hair consists mainly of keratin, which is also responsible for the elasticity of fingernails.
- A single hair has a thickness of 0.02-0.04mm, so that 20 to 50 hair fibers next to each other make one millimeter. Hair is strong as a wire of iron. It rips after applying a force equivalent to 60kg, after it is stretched to 70%.
- The root of a hair fiber sticks into something like a bag in the skin. The fiber is pushed out of this bag about 0.35mm per day; making an average growth rate of 1cm, or half of an inch, per month. The growth rate is however very much related to the individual person, his/her age, his/her diet etc.
- Healthy hair has an average lifetime of 2-6 years.
This entry was posted
on Sunday, December 10th, 2006 at 4:57 pm and is filed under Natural Hair Styles.
You can follow any responses to this entry through the RSS 2.0 feed.
You can leave a response, or trackback from your own site.