Current research on ethnic hair.

@article{Franbourg2003CurrentRO,
  title={Current research on ethnic hair.},
  author={Alain Franbourg and Philippe Hall{\'e}got and Fr{\'e}d{\'e}ric Baltenneck and Christelle Toutain and Fr{\'e}d{\'e}ric Leroy},
  journal={Journal of the American Academy of Dermatology},
  year={2003},
  volume={48 6 Suppl},
  pages={
          S115-9
        }
}
This study collected qualitative and quantitative data about the morphology, structure, geometry, water swelling, and mechanical properties of hair fibers from subjects of different ethnic origins. X-ray analysis, cross-sectional measurements, tensile testing, and water swelling were performed on samples of hair collected from Caucasian, Asian, and African subjects. No differences in the intimate structures of fibers were observed among these 3 types of hairs, whereas geometry, mechanical… 

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Evaluation of water sorption and desorption of the different ethnic hairs and with and without lipids is also studied mainly to determine permeation changes of the keratin fibres.

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The purpose of the work presented here is to identify the main nanoscopic and molecular hierarchical differences across five different ethnic hair types from hair fibres taken exclusively from the scalp.

The behavior of hair from different countries.

The properties of curly hair from different countries were assessed using geometrical measurements from a laser scanning micrometer and a new hair shape classification method and it was concluded that hair characteristics are influenced by the degree of curl.

Chemical and Physical Properties of Hair: Comparisons Between Asian, Black, and Caucasian Hair

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Thermoanalytical characterization study of hair from different ethnicities

A characterization study of the samples of hair and animal keratin was performed to enhance the understanding of the thermal properties of the hair of the main ethnic groups. The mechanical,

The influence of African‐American hair's curl pattern on its mechanical properties

The physical differences found in a comparison of several samples of African-American hair with different degrees of curl are described.

Structure and mechanical behavior of human hair.

Morphology and properties of Asian and Caucasian hair.

It was proven that the cuticles of Asian hair are more easily peeled off than Caucasian hair cuticles during daily grooming, which can be attributed to the difference in how stress is absorbed.
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