You cannot place a new order from your country. United States
The hair scalp counts between 100 000 and 150 000 hair. Made up of 95% of keratin, its resistance to traction is from 50 to 100 milli-newtons per hair, the equivalent of 5 to 10 grams.
In average, a hair can absorb 30% of its volum weight in water and stretch out of 10%.
Learn more about hair by clicking on one of these related topics below.