California Cosmetology Written ExamClient Consultation and AnalysisMedium
A strand test reveals that a client's hair cuticle lies flat and tightly closed, causing the hair to resist penetration of moisture and chemical products. This describes which porosity level, and what adjustment is typically needed?
- ANormal porosity; no adjustment is needed
- BHigh porosity; reduce processing time
- CHigh porosity; use a lower-alkaline product
- DLow porosity; increase processing time or apply heat to help open the cuticle
Show answer & explanationAnswer & explanation
Correct answer: D. Low porosity; increase processing time or apply heat to help open the cuticle
Low porosity hair has a tightly closed cuticle that resists moisture and chemical penetration, so processing time typically needs to be increased, and heat may be used to help lift the cuticle for better product absorption.
Why the other options are wrong
- A. Normal porosity absorbs moisture at a moderate rate without needing significant adjustment, unlike the resistant hair described.
- B. High porosity hair has a raised, open cuticle and processes quickly, not slowly.
- C. Alkalinity choice is separate from porosity-based timing adjustments.
Low Porosity Hair
Low porosity hair has a tightly closed cuticle layer that resists the absorption of moisture and chemicals, often requiring longer processing times or added heat.
- Cuticle lies flat and closed
- Resists product penetration
- Longer processing time or heat helps open cuticle
Memory trick: Low porosity = a locked door 🔒 — you need extra time (or heat) to get the key in.