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Cosmetology · Hair and Scalp Science

The technical term for the study of hair is:

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Correct answer

Trichology

  1. A Trichology
  2. B Histology
  3. C Onychology
  4. D Dermatology

Why this is the answer

Trichology is the technical term for the scientific study of hair and its diseases and care. (Dermatology is the study of skin, onychology is the study of nails, and histology is the study of tissues.) Cosmetologists apply trichology when analyzing a client's hair type, condition, and any scalp issues before a service. Knowing the correct '-ology' terms for hair, skin, and nails — trichology, dermatology, and onychology respectively — is commonly tested in the scientific-concepts section.
Source: Scientific Concepts — Trichology

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About this topic: Hair and Scalp Science

Hair and scalp science covers the structure of the hair (cuticle, cortex, medulla), the follicle and growth cycle, hair types and the common scalp and hair disorders — which can be treated in the salon and which must be referred. This is one of 9 Scientific Concepts questions on hair and scalp science, each with a full explanation on a single study page.

New to this exam? Our Cosmetology exam guide explains the format, scoring, and how to prepare.

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