More and more consumers ask if sunscreens are safe. This question boils down to safety assessment as the European Union requires it for all Cosmetic Formulations. But it goes beyond safety of risk assessment. The user is finally also involved and then we rather talk about risk management, e.g. as Diffey explained it in his…
The festive season around the turn of the year is the time of wishes and resolutions. So, this seems to be the right time to ask the question “what is the ideal sun protection”, in other words “what is the optimal protection profile”. I have been asking myself this question since I started working with…
At the 18th World Congress on Skin Cancer in Buenos Aires, Oct. 26-29, 2022 (https://wccs2022.com), Prof. Claus Garbe, M.D., of Tübingen, Germany, gave a keynote lecture on Obstacles to Melanoma Prevention (Why It Doesn’t Work). Garbe focused on incidence data for malignant melanoma in Europe, Denmark and Germany, compared with current hot spots in Australia…
In the first Sweep the Sun columns we looked at the Gold Standard ISO 24444:20191 and the possible alternatives that are currently in the making at ISO2. This time we look at “outdoor SPF testing” which had its origins in Schulze’s first definition of SPF3 and has now being revisited by some who want to…
In the first Sweep the Sun column we looked at the revised ISO 24444:2019, the Gold standard in SPF-testing. Practically since the dawn of SPF testing, which began in the 1960s as an outdoor method under the sun, there has always been a desire for an alternative method that does not involve humans. Over the…
This is the first edition of Sweep the Sun. Let me explain what qualifies me as a writer of a sunscreen column. Being a chemical engineer by training is already useful because all sunscreens are composed of chemicals, whether organic or inorganic. Then comes, of course, my experience; I have worked at the large supplier…
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