In vivo biophysical characterization of skin physiological differences in races

E. Berardesca, J. De Rigal, J. L. Leveque, H. L. Maibach

Research output: Contribution to journalArticlepeer-review


The role of race in modulating skin responses has been investigated. Several parameters (skin thickness, transepidermal water loss, water content of the stratum corneum and skin biomechanics) have been measured using noninvasive tools in whites. Hispanics and blacks to assess whether the melanin content could induce changes in skin biophysical properties. Marked differences between races appear in stratum corneum water content and in skin extensibility, recovery and clastic modulus. Measurements done in different sun-exposed sites highlight the effects of solar irradiation on the skin and the role of melanin in preventing skin damage. The study shows that racial differences in skin physiology exist and are mainly related to the protective role of melanin present in races with darker skin. Moreover, differences in skin hydration are not fully explained according to the site and presence of hair.

Original languageEnglish
Pages (from-to)89-93
Number of pages5
Issue number2
Publication statusPublished - 1991


  • Biomechanics
  • Hydration
  • Physiology
  • Pigmentation
  • Races
  • Sun exposure
  • Transepidermal water loss

ASJC Scopus subject areas

  • Dermatology


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