Nature's Guard: UV Filter from Pollen

Abstract Protection against ultraviolet (UV) radiation has long safeguarded humans against skin diseases. However, recent studies have uncovered that the UV‐filtering compounds in sunscreens can have harmful effects on marine ecosystems. This discovery has led to a major re‐evaluation and reformulation of the chemicals used in UV filter. Even with the ban on several of these compounds, current sunscreens on the market still contain other harmful substances. To reverse the adverse effects currently afflicting the ecosystem and provide a genuinely sustainable solution, inspiration is drew from nature to develop a plant‐derived, pollen microgel UV filter. The in vitro and in vivo investigations showed that the microgel exhibited excellent ultraviolet B (UVB) protection to the skin with no toxic effects. More importantly, the introduction of the microgels to simulated seawater showed that it supports long‐term healthy survival of corals, with minimal heat accumulation in the applied formulation, which is vital for maintaining the delicate balance in the marine ecosystem. It is anticipated that these promising results will spark a paradigm shift toward sustainable UV protection strategies that not only protect humans but also remedy the natural ecosystem.