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September 5, 2025International Journal of Cosmetic ScienceOpen Access

Performance of hybrid diffuse reflectance spectroscopy (HDRS‐ISO 23698) methodology for assessment of sunscreen protection in the ALT‐SPF Consortium validation study

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Authors

EREduardo RuvoloCCCurtis ColeMRMathias Rohr

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Overview

Hybrid diffuse reflectance spectroscopy estimates sunscreen protection in skin models, indicating potential as a reliable alternative to traditional SPF tests.

Key Points

  • Hybrid diffuse reflectance spectroscopy provides accurate estimates of sunscreen protection without skin damage, highlighting its potential as a new testing method.
  • Strong correlation of results for SPF, UVA protection factor, and critical wavelength was observed when using the HDRS methodology in comparison with gold standard methods.
  • A second study showed reduced variability in sunscreen protection estimates, achieving results comparable to established reference methods, enhancing reliability.
  • This non-invasive tool may enable future assessments of sunscreen properties, such as water resistance, without conducting painful in vivo tests.

Cite This Study

Ruvolo et al. (2025) studied this question.

synapsesocial.com/papers/68bb49cc6d6d5674bccffcfchttps://doi.org/10.1111/ics.13089
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Evaluating sunscreen ultraviolet protection using a polychromatic diffuse reflectance device2019 · 12 citations
  2. 2Skin colour typology and suntanning pathways1991 · 354 citations
  3. 3Sunscreen sun protection factor claim based on in vivo interlaboratory variability2016 · 36 citations
  4. 4In vivo measurement of the photostability of sunscreen products using diffuse reflectance spectroscopy2002 · 27 citations