Overview
Scientists at UCLA have developed a mineral sunscreen formulation utilizing redesigned zinc oxide particles. This new formulation aims to provide protection against ultraviolet radiation while reducing the visible white cast often associated with traditional mineral sunscreens. The developed product is an SPF 30 formula.
Research Context
Mineral sunscreens, which often use zinc oxide as their active ingredient, are known for protecting against ultraviolet radiation. However, a common drawback has been the noticeable white residue they can leave on the skin. This characteristic can impact user appeal, particularly across a diverse range of skin tones.
Approach
The research involved a redesign of zinc oxide particles. The specific modifications to the particle structure or composition were undertaken to achieve a reduction in the white cast effect while maintaining photoprotective efficacy. The result of this redesign process is a sunscreen formulation presenting an SPF 30 rating.
Findings
The primary finding is the successful development of a mineral sunscreen based on redesigned zinc oxide particles. This SPF 30 formula is effective in protecting against ultraviolet radiation. Crucially, the redesign of the particles has resulted in a sunscreen that produces a less noticeable white cast when applied to the skin.
Why This Matters
The development of a mineral sunscreen with a reduced white cast addresses a factor that can deter individuals from using sunscreen. By making the product appear less visible on the skin, particularly across a wider range of skin tones, it could potentially make sunscreen use more appealing and easier for a broader population.