Age-tailored artificial skin model for cosmetic film development

Area of Science:

• Cosmetic Science
• Biomedical Engineering
• Dermatology

Background:

• Cosmetic formulations require uniform thin film deposition for effective coverage.
• Skin topography, particularly age-related changes like wrinkles and roughness, significantly impacts cosmetic film uniformity.
• Existing methods struggle to account for diverse skin types and ages, hindering standardized cosmetic performance evaluation.

Purpose of the Study:

• To investigate the influence of age-related skin topographical changes on cosmetic thin film deposition.
• To develop and validate an artificial skin model for standardized, age-specific cosmetic performance assessment.
• To provide insights for optimizing cosmetic formulations for varied consumer needs.

Main Methods:

• X-ray microtomography was used to analyze skin topography in young and aged Korean cohorts.
• A polydimethylsiloxane (PDMS)-based artificial skin model was created using the acquired topographical data.
• Thin film deposition was evaluated on both human-derived skin samples and the artificial models.

Main Results:

• Age-related skin topography significantly alters cosmetic thin film deposition patterns.
• The developed artificial skin model accurately reflects film deposition behavior observed on real skin.
• The model shows potential for precise quantification and evaluation of cosmetic film coverage.

Conclusions:

• Artificial skin models offer a viable solution for standardized and age-specific cosmetic performance testing.
• Incorporating factors like skin porosity and sebum production can enhance model realism.
• Understanding skin morphology-cosmetic interactions is crucial for developing effective, consumer-centric formulations.