What is porosity?

What is porosity?

• A. The hair's ability to absorb moisture or chemicals
• B. The hair's density
• C. The hair's elasticity
• D. The hair's natural color

Answer: (A)

Porosity is the hair's ability to absorb moisture or chemicals, and it depends on how open or closed the cuticle scales are. When the cuticle is raised or damaged, porosity is high, so moisture and chemical products penetrate quickly and can also escape easily, affecting processing times and conditioners. When the cuticle lies flat and intact, porosity is low, making penetration slower and sometimes requiring adjustments in products or processing time. This concept helps you predict how the hair will respond to washables, treatments, and chemical services. Density is about how much hair you have on the head, elasticity is how far hair can stretch and still return to shape, and natural color refers to pigment in the cortex.

Porosity is the hair's ability to absorb moisture or chemicals, and it depends on how open or closed the cuticle scales are. When the cuticle is raised or damaged, porosity is high, so moisture and chemical products penetrate quickly and can also escape easily, affecting processing times and conditioners. When the cuticle lies flat and intact, porosity is low, making penetration slower and sometimes requiring adjustments in products or processing time. This concept helps you predict how the hair will respond to washables, treatments, and chemical services. Density is about how much hair you have on the head, elasticity is how far hair can stretch and still return to shape, and natural color refers to pigment in the cortex.