Mineral Sunscreen
Mineral Sunscreen — a sunscreen that uses mineral UV filters, zinc oxide and titanium dioxide, to help protect skin from ultraviolet rays. These filters sit largely on the skin's surface and are sometimes called physical or inorganic sunscreens.
Key points
- Mineral sunscreens rely on zinc oxide and titanium dioxide as their active UV filters.
- Zinc oxide provides broad-spectrum coverage across UVA and UVB, while titanium dioxide is especially effective against UVB and shorter UVA wavelengths.
- They are often chosen by people with sensitive or reactive skin and are effective as soon as they are applied.
- Traditional mineral formulas can leave a white cast, though tinted and micronized versions help reduce this appearance.
Frequently asked
Is mineral sunscreen better for sensitive skin?
Many people with sensitive or reactive skin prefer mineral filters because they sit largely on the skin's surface and are generally well tolerated. Patch testing a new product is still a good idea.
Why does mineral sunscreen leave a white cast?
The mineral particles reflect and scatter light, which can look white on the skin, and this is often more noticeable on deeper skin tones. Tinted or finely milled formulas help minimize the effect.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
