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September 5, 2025International Journal of Cosmetic ScienceOpen Access

Characterization of LED‐based hybrid diffuse reflectance spectroscopy method for determination of SPF and UVA‐PF in blinded multi‐centre study (ALT‐SPF)

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Authors

CRCarina RebleMBMichael BayerBCBertrand Colson

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Overview

Multi-centre study characterizes LED method for non-invasive SPF and UVA-PF measurement, suggesting potential alternatives to current standards.

Key Points

  • The LED-HDRS method demonstrated acceptable bias for SPF results in blinded studies, enhancing method reliability.
  • Statistical assessments revealed improvements for reproducibility and interlaboratory variability, crucial for method validation.
  • In the ALT-SPF study, results showed UVA-PF values met acceptance limits, indicating comparable precision to established ISO methods.
  • The hybrid method aligns closely with performance criteria of gold standards ISO 24444 and ISO 24443, suggesting it as a viable alternative.

Cite This Study

Reble et al. (2025) studied this question.

synapsesocial.com/papers/68bb49cc6d6d5674bccffcechttps://doi.org/10.1111/ics.70007
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