What is elasticity in hair?

• A. Hairs ability to be stretched and returned to its original shape without breaking
• B. The hair's shine
• C. The hair's color
• D. The hair's moisture content

Answer: (A)

Elasticity is the hair's ability to be stretched and return to its original shape without breaking. This property shows how well the strands can handle tension during styling or chemical processing and then recover their shape. Hair with good elasticity can stretch and bounce back; when elasticity is reduced, strands are more likely to fray or snap under tension. This quality comes from the balance of moisture and protein in the hair, so dry or damaged hair loses elasticity and breaks more easily. Shine, color, and moisture content describe other aspects of hair—surface appearance, pigment, and hydration level—so they don’t define the hair’s stretch-and-recovery behavior.