General Facts About Hair

  • 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.

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General Facts About Hair

  • 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.

Leave a Reply

You must be logged in to post a comment.