California Cosmetology Practice Exam

Healthy hair typically exhibits good elasticity, which is a key indicator of its strength and vitality. Elasticity refers to the hair's ability to stretch and return to its original length without breaking. Hair that has high elasticity can withstand styling and environmental stressors without sustaining damage. This suggests that the hair retains moisture and is well-nourished, contributing to its overall health and appearance.

In contrast, lack of shine, split ends, and extreme dryness are all indicative of damaged or unhealthy hair. Lack of shine often signifies that the hair is dry or may be coated with product buildup. Split ends are a sign of hair that has been subjected to excessive heat, chemical treatments, or insufficient conditioning. Extreme dryness can occur due to many factors, including environmental damage, over-washing, or inappropriate hair care products. Therefore, elasticity stands out as a positive sign of healthy hair, emphasizing its ability to remain strong and pliable.