During the elasticity test, from which area of the head is the strand removed?

During the elasticity test, from which area of the head is the strand removed?

• A. Top of the head
• B. Side of head above ears
• C. Nape of the neck
• D. Crown

Answer: (B)

Elasticity is about how far a hair strand can be stretched and then spring back without breaking. For the elasticity test, you remove a small strand from the side of the head above the ears because this area tends to give a representative sample of the hair’s overall behavior: it’s accessible, and the hair there usually reflects the typical condition of the head without the abnormal influences that can come from the crown (more sun/heat exposure or styling products) or the nape (often different in texture or porosity). Testing from this zone provides a reliable read on how the hair will respond to processing across the head.

Elasticity is about how far a hair strand can be stretched and then spring back without breaking. For the elasticity test, you remove a small strand from the side of the head above the ears because this area tends to give a representative sample of the hair’s overall behavior: it’s accessible, and the hair there usually reflects the typical condition of the head without the abnormal influences that can come from the crown (more sun/heat exposure or styling products) or the nape (often different in texture or porosity). Testing from this zone provides a reliable read on how the hair will respond to processing across the head.