New Sunscreen Prototype Cools Skin While Blocking UV Rays

The innovative formula uses radiative cooling to lower skin temperature by up to 11°F compared to bare skin, offering dual protection against UV radiation and heat.

The sunscreen employs radiative cooling by reflecting and radiating heat, a first for cosmetic products.
It uses specially tuned titanium dioxide nanoparticles to block UV rays and reduce solar heat exposure.
In tests, the SPF 50 formula kept skin up to 11°F cooler than bare skin and 6°F cooler than existing sunscreens.
The formulation is water-resistant, skin-friendly, and remains effective after 12 hours of simulated sunlight exposure.
At $0.92 per 10 grams, the prototype is cost-competitive, with researchers highlighting its commercial potential as global temperatures rise.