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September 10, 2025Photodermatology Photoimmunology & PhotomedicineOpen Access

Standardized In Vivo Method Using High‐Resolution Diffuse Reflectance Spectroscopy for Evaluating Sunscreen Effectiveness Against Ultraviolet A and High‐Energy Visible Light

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Authors

RTRita ToutiPRPascale RenouxHNHicham Noçairi

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Overview

Open in vivo study compares methodology in assessing UVA and high-energy visible protection in sunscreens, suggesting accuracy varies significantly.

Key Points

  • Sunscreen performance was evaluated using high-resolution diffuse reflectance spectroscopy, leading to more reliable results.
  • The study found significant differences in sunscreen effectiveness depending on the evaluation methodology used.
  • Using linear interpolation for sunscreen evaluation resulted in misclassifications, particularly in the UVA light range.
  • This study emphasizes the importance of methodological standards in assessing sunscreen protection against UV and HEV light.

Cite This Study

Touti et al. (2025) studied this question.

synapsesocial.com/papers/68c1ad5c54b1d3bfb60e552ahttps://doi.org/10.1111/phpp.70044
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Also Consider

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  1. 1Performance of hybrid diffuse reflectance spectroscopy (<scp>HDRS</scp>‐<scp>ISO</scp> 23698) methodology for assessment of sunscreen protection in the <scp>ALT</scp>‐<scp>SPF</scp> Consortium validation study2025
  2. 2Characterization of <scp>LED</scp>‐based hybrid diffuse reflectance spectroscopy method for determination of <scp>SPF</scp> and <scp>UVA</scp>‐<scp>PF</scp> in blinded multi‐centre study (<scp>ALT</scp>‐<scp>SPF</scp>)2025
  3. 3Evaluation of Tinted Sunscreens Protection Against Blue Light Using Transmittance Spectroscopy In Vitro Technique2026
  4. 4Visualization of sun protect factor (SPF): a new method to assess the performance of sunscreen using photochromic film2025
  5. 5Chemometric-assisted classification of sunscreen sun protection factor using in vitro UV spectroscopy2026