Hair and Scalp Care Practice Test 2026 – Your Complete Exam Guide

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Of all hair types, the hair with the largest diameter is which type?

Fine

Medium

Coarse

Diameter refers to the thickness of the individual hair strand. Among the common categories, coarse hair has the largest diameter, meaning its strands are thicker than fine or medium hair. Texture like wavy describes the curl pattern, not thickness, so a wavy strand can be fine, medium, or coarse. Therefore, the largest diameter is coarse hair.

Wavy

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