Jessica Presented Work at the ISBS in Lyon, 10–12 June, 2026

How a warming climate impacts upon sunscreen efficacy

The TRI team have had a busy coupled of weeks, with the Suppliers Day in New York, EuroSun2026 in Basel, Switzerland, the 12th TRI International Conference on Applied Hair Science, and the ISBS (International Society for Biophysics and Imaging of the Skin) conference in Lyon, France, in June. 

At the ISBS, Jessica gave a talk titled “Spectroscopic Clinical Evaluation of Next-Generation Sunscreen Performance: Assessing UV Filter Beyond SPF in Realistic Global Warming Conditions”, which was based upon work completed at TRI. In this talk, Jessica considered how skin surface temperature during solar exposure can impact upon sunscreen efficacy, which is becoming more important due to climate change. At higher temperatures, it was noted that the stratum corneum becomes increasingly fluid, which significantly enhances the systemic penetration of UV filters while simultaneously decreasing their surface retention. This compromises both product safety and efficacy. However, research at TRI has shown that through using new technologies, such as encapsulation, film formers, or bioadhesive molecules, superior stability and durability of the sunscreen formulation can be achieved, which may be key for next-generation formulations. 

If you’re interested in learning more about this fascinating area of research, Samuel Gourion-Arsiquaud, Director, Skin and BioSubstrates, presented early findings within the TRI Talks 2024 series. This is available to purchase from the TRI Library as part of a box set.