During an elasticity test, how can you tell if the hair is structurally weak?

During an elasticity test, how can you tell if the hair is structurally weak?

• A. Returns 100%
• B. Returns 75%
• C. Returns 50% or less
• D. Breaks immediately

Answer: (C)

Elasticity tests look at how well a hair strand springs back after you stretch it. If the strand can return to its original length completely, it shows strong elasticity and healthy structure. When it only recovers half of the stretch or less, the internal bonds in the hair have been damaged and the keratin structure can’t rebound, signaling structural weakness. If it breaks immediately, the damage is already severe. So, hair is structurally weak when it recovers 50% or less.

Elasticity tests look at how well a hair strand springs back after you stretch it. If the strand can return to its original length completely, it shows strong elasticity and healthy structure. When it only recovers half of the stretch or less, the internal bonds in the hair have been damaged and the keratin structure can’t rebound, signaling structural weakness. If it breaks immediately, the damage is already severe. So, hair is structurally weak when it recovers 50% or less.