A Game-Changing Innovation: UCLA’s New Mineral Sunscreen Without the Chalky White Cast
For the millions who have shied away from mineral sunscreen due to its infamous chalky white residue, a revolutionary new option is on the horizon. Researchers at UCLA Health’s Jonsson Comprehensive Cancer Center have developed a unique form of zinc oxide that provides comprehensive sun protection without leaving an unsightly white or gray film, a common deterrent for daily use, particularly among individuals with medium to darker skin tones.
The groundbreaking research, featured in ACS Materials Letters and spotlighted by ScienceDaily in July 2026, revolves around the transformation of zinc oxide particles into minuscule four-armed structures known as tetrapods. These tetrapod-based formulas, when incorporated into test sunscreens at the same concentration as traditional zinc oxide, achieved an SPF of approximately 30. This is on par with standard mineral sunscreens, but with a significant difference: they reflect visible light in a manner that appears warmer and much closer to natural skin tones, with no need for additional pigments or special coatings.
“When I spread it on my own skin, I didn’t get that white cast I usually see with zinc oxide,” shared study first author AJ Addae, a UCLA chemical biology doctoral candidate. Addae’s personal dissatisfaction with existing products sparked the research. The team also discovered that tetrapod-based formulas remained more stable over time, experiencing less particle separation or thickening.
Given that excessive UV radiation is the primary preventable cause of skin cancer — the most prevalent cancer in the United States — this cosmetic advancement could have far-reaching public health implications by promoting more consistent daily sunscreen use.
Source: ScienceDaily – UCLA scientists develop mineral sunscreen without the chalky white cast (July 2026)