Porosity refers to the hairs ability to what?

Porosity refers to the hairs ability to what?

• A. Absorb and retain moisture (liquids and chemicals)
• B. Resist chemical changes
• C. Stretch elasticity
• D. Hold color

Answer: (A)

Porosity is about how easily the hair shaft can take in moisture and chemical solutions, which depends on how open the cuticle layers are. When the cuticle scales are more lifted, hair can absorb and retain moisture and chemicals more readily; when they’re closed, absorption is slower. That’s why the description that best fits porosity is the hair’s ability to absorb and retain moisture (liquids and chemicals). The other ideas describe different properties—chemical changes resistance, elasticity, or color retention—not the core meaning of porosity.

Porosity is about how easily the hair shaft can take in moisture and chemical solutions, which depends on how open the cuticle layers are. When the cuticle scales are more lifted, hair can absorb and retain moisture and chemicals more readily; when they’re closed, absorption is slower. That’s why the description that best fits porosity is the hair’s ability to absorb and retain moisture (liquids and chemicals). The other ideas describe different properties—chemical changes resistance, elasticity, or color retention—not the core meaning of porosity.