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Skin pore (SP) size, density, and coverage vary significantly across ethnicities and generally stabilize with age. Chinese women exhibit lower SP density and size compared to other groups.

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Area of Science:

  • Dermatology
  • Aesthetic Science
  • Anthropometry

Background:

  • Skin pores (SP) are common facial features causing aesthetic concerns, yet scientific literature is limited.
  • Understanding the prevalence and anatomical features of SP across diverse populations is crucial.

Purpose of the Study:

  • To investigate the prevalence, size, density, and coverage of facial skin pores (SP) across different ethnic groups.
  • To correlate objective SP measurements with subjective self-assessment of pore appearance.

Main Methods:

  • Dermatoscopic examination with polarized lighting and digital photography of cheek skin in 2,585 women globally.
  • Automated software analysis using a 250 μm detection threshold for SP counting (density N/cm²) and size measurement (mm²).
  • Calculation of relative SP surface coverage (%) on the cheeks.

Main Results:

  • SP characteristics (size, density, coverage) were observed in all participants and varied significantly with ethnicity.
  • Measurements generally plateaued with increasing age and correlated with self-reported 'enlarged pores', notably in Brazilian women.
  • Chinese women showed distinctly lower SP density and size compared to other ethnic groups.

Conclusions:

  • Facial skin pore morphology appears influenced by ethnicity and age, with less correlation to sebaceous gland function than previously thought.
  • Further research is needed to explore the relationship between skin pore characteristics and photo-aging.