Cosmetology · Client Consultation and Hair Analysis

What does hair porosity describe?

Correct answer

The hair's ability to absorb moisture and chemicals

  1. A The hair's color
  2. B The number of hairs
  3. C The length of the hair
  4. D The hair's ability to absorb moisture and chemicals

Why this is the answer

Porosity describes the hair's ability to absorb moisture, liquids, and chemicals, which is related to the condition of the cuticle. High-porosity hair (often from damage or chemical processing) has a raised or open cuticle and absorbs quickly but may process unevenly; low-porosity hair has a tight cuticle and resists absorption. Porosity strongly affects chemical services like color and perms, so it must be assessed beforehand. Understanding porosity — and how it influences product behavior — is a key part of hair analysis tested on the exam.
Source: Hair Care — Porosity

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About this topic: Client Consultation and Hair Analysis

Client consultation and hair analysis questions cover the questions to ask before a service, how to assess hair texture, porosity, elasticity and density, and how to spot conditions that mean a service should be postponed or refused. This is one of 11 Hair Care questions on client consultation and hair analysis, each with a full explanation on a single study page.

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