Experimentelle neue Sonnenschutzmittel verzichten auf Mineralien und ersetzen sie durch Pflanzenpollen. Bei der Anwendung auf tierische Haut in Labortests bewertete es SPF 30 und blockierte 97% UV -Strahlen. Es hatte keinen Einfluss auf Korallen, auch nach 60 Tagen. Im Gegensatz dazu starben Korallen innerhalb von 6 Tagen nach der Exposition gegenüber kommerziellen Sonnenschutzmitteln an Bleichen.

I’ve linked to the news release in the post above. In this comment, for those interested, here’s the link to the peer reviewed journal article:

https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/adfm.202516936

From the linked article:

Minerals such as titanium dioxide and zinc oxide are very effective sunscreen ingredients, but they can harm coral reefs if used in their non-nanoparticle form. **An experimental new sunscreen forgoes the minerals altogether, replacing them with „just-as-effective“ plant pollen.**

**When applied to animal skin in lab tests, that gel was found to block harmful ultraviolet rays as effectively as a conventional mineral- or chemical-based sunscreen with an SPF rating of about 30. This means it blocked approximately 97% of the UV rays.**

As an added benefit, because sporopollenin absorbs less energy than regular sunscreen in the visible to near-infrared spectrum, the microgel was found to keep the skin a total of 5 ºC (9 ºF) cooler for 20 minutes after application.

And importantly, **the gel had no effect on corals after being added to the water in which they were living, even after 60 days. By contrast, the corals died of bleaching within six days of exposure to commercial sunscreens**.

Cool, but what about allergies?