Texas Class A Barber Written ExamChemical ServicesMedium
A barber is analyzing a client's hair before a permanent waving service. The hair feels rough, absorbs moisture quickly, and appears dull. This indicates which type of hair porosity?
- ANormal porosity.
- BAverage porosity.
- CLow porosity.
- DHigh porosity.
Show answer & explanationAnswer & explanation
Correct answer: D. High porosity.
High porosity hair has a raised or compromised cuticle layer, allowing moisture (and chemicals) to be absorbed very quickly, but also lost easily. This often results in a rough texture, dull appearance, and can lead to faster chemical processing or damage if not handled carefully.
Why the other options are wrong
- A. Normal porosity hair has a healthy cuticle, absorbing moisture evenly and processing predictably.
- B. Average porosity is synonymous with normal porosity.
- C. Low porosity hair has a tightly closed cuticle, resisting moisture absorption and requiring longer processing.
High Hair Porosity
A hair condition where the cuticle layers are raised or damaged, allowing for rapid absorption of moisture and chemicals, but also rapid moisture loss, often leading to a rough, dull, and brittle texture.
- Raised cuticle.
- Absorbs moisture quickly.
- Loses moisture quickly.
- Rough texture, dull appearance.
- Prone to damage.
Memory trick: Low is tight, normal is balanced, high is open and thirsty.