Researchers at UCLA have engineered a new mineral sunscreen formula using uniquely shaped zinc oxide particles that protect against ultraviolet radiation without leaving the common white or gray residue on skin. This advancement aims to boost daily sunscreen use and support skin cancer prevention for diverse skin tones.
- New zinc oxide particle shape reduces white cast on skin
- Formula provides broad UVA and UVB protection with SPF 30
- Improves sunscreen appeal for people of all skin tones
What happened
Scientists at UCLA have modified the physical shape of zinc oxide particles used in mineral sunscreens to eliminate the usual white or gray film that often deters people from consistent use. Instead of traditional spherical nanoparticles, they designed microscopic four-armed tetrapod-shaped particles. This structure prevents clumping and light scattering, reducing visible residue on the skin.
Published in ACS Materials Letters, the study shows that these tetrapod particles provide effective protection against ultraviolet radiation while improving the sunscreen's cosmetic appearance. This innovation utilizes existing safe and effective zinc oxide but enhances its form to better serve users and encourage more regular application.
Why it feels good
The new sunscreen formula addresses a key barrier to daily sun protection: the white cast many mineral sunscreens leave on the skin, especially on darker tones. This often causes users to skip sunscreen application, increasing their risk of skin cancer. By reducing visible residue, the product encourages wider, more consistent use, which can aid in prevention.
This advancement carries particular significance for people with darker skin, who historically use sunscreen less frequently and face later-stage skin cancer diagnoses. The improved aesthetic appeal and ease of use could help slow skin cancer mortality rates and foster better skincare habits across skin types.
What to enjoy or watch next
Keep an eye out for sunscreen brands that adopt this tetrapod zinc oxide technology as it becomes available in consumer products. This innovation promises to blend mineral sunscreen’s protective benefits with cosmetic appeal, making sun protection routines more enjoyable.
Further research and development may explore extending this approach to other skin protection formulations or enhancing particle designs for even broader sun defense. Meanwhile, dermatologists and skincare enthusiasts alike can appreciate how this breakthrough aligns with efforts to promote safe sun exposure in diverse communities.