PSI Barbering Practice Exam

Low elasticity in hair may result from ____________.

1. Poor nutrition

2. Excess moisture

3. High porosity

4. Over conditioning

The correct answer is: Poor nutrition

Low elasticity in hair is often indicative of damage or stress that can be traced back to poor nutrition. The hair structure relies significantly on the nutrients supplied through the diet, including proteins, vitamins, and minerals, which are vital for maintaining healthy hair growth and elasticity. When the hair lacks essential nutrients, it can become brittle and lose its ability to stretch and return to its original shape effectively. This can lead to several problems, including an increased likelihood of breakage. Therefore, poor nutrition severely impacts the hair's overall health and resilience, making it prone to low elasticity. In contrast, excess moisture can temporarily enhance the pliability of hair but does not inherently cause low elasticity. High porosity usually reflects a condition of the hair that has more openings in the cuticle layer, which may lead to other issues but not necessarily low elasticity. Over-conditioning might lead to hair that feels soft and smooth but can also result in weight or buildup, which could affect elasticity differently. Understanding the role of nutrition is crucial in maintaining healthy hair and its elasticity.