UCLA研究人员重新设计了氧化锌颗粒的结构，将其制成四臂四面体形状，开发出一款能够提供SPF 30防护效果的矿物防晒产品，同时大幅减少了传统配方中常见的白色痕迹问题1。这种创新设计使防晒霜在皮肤上呈现出更加温和的色调，能够更好地适配各种肤色，有望鼓励更多人群坚持使用防晒产品1。
该研究由UCLA健康乔德森综合癌症中心的科研团队完成，采用专利高温火焰工艺生成四面体形状的颗粒1。新型颗粒能够保持均匀分布而不发生聚集1。相关成果已于2025年发表在《ACS材料通讯》第8卷第4期上1。研究第一作者阿杰·阿代表示："最好的防晒霜是人们愿意实际使用的那一款"1。资深作者保罗·韦斯则指出："如果改善防晒霜的外观能够促进人们更持续地使用它，这对皮肤癌预防可能产生真实的影响。"1
深色肤色人群被诊断为晚期皮肤癌的概率更高1。氧化锌已被美国食品药品监督管理局认定为安全有效的成分1。该研究获得了美国国家科学基金会、UCLA挑战计划和Sigma Xi IFoRE助研基金的资助1。
Researchers at UCLA have redesigned zinc oxide particles into four-armed tetrapod structures to create a mineral sunscreen that maintains SPF 30 protection while significantly reducing the chalky white appearance characteristic of traditional formulas 1. The tetrapod-shaped particles remain evenly distributed without clumping and produce a warmer tone that better matches diverse skin tones, potentially encouraging more consistent sunscreen use across different populations 1.
The new tetrapod particles were created through a patented high-temperature flame process and have been evaluated in a study published in ACS Materials Letters in 2025, volume 8, issue 4 1. According to Paul S. Weiss, the senior author, "If improving how sunscreen looks leads to more consistent use, it could have real implications for skin cancer prevention" 1. First author AJ Addae emphasized that "The best sunscreen is the one people will actually use" 1, noting that people with darker skin tones are more likely to receive skin cancer diagnoses at later stages 1.
The FDA has classified zinc oxide as safe and effective, making it a suitable component for this formulation 1. The research was funded by the National Science Foundation, UCLA Challenge Initiative, and Sigma Xi IFoRE Grant-in-Aid 1.
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