Obviously, dry hair is hair that lacks moisture or, more accurately, hair that has lost the ability to retain and balance moisture. Washing, blow-drying, styling plus environmental factors such as UV light, can all play a role in how rapidly your hair loses its healthy cuticle.
Combing is then modified, as well as the noise from the brush in the hair. This new challenge was to catch the sound of hair that reflects the different status of hair: dry, damaged, etc…
That is why, Transderma Systems and Spincontrol decided to offer an original method to evaluate effects of hair care products based on “the sound of hair”.