Product Types

Mineral Sunscreen

Written by Reviewed by the SYNC editorial team Published Last reviewed Editorial standards

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.

Encyclopedia

Further reading

This entry was written and checked against the sources below. They are published by clinical and scientific bodies, they are listed most readable first, and each one opens in a new tab. They are background for the whole entry rather than footnotes to individual sentences.

  1. Introduction to Sunscreens and Their UV Filters - Review of Fate, Exposure, and Effects of Sunscreens in Aquatic Environments and Implications for Sunscreen… StatPearls (NCBI Bookshelf) Reference text ncbi.nlm.nih.gov
  2. Questions and Answers: FDA posts deemed final order and proposed order for over-the-counter sunscreen U.S. FDA Regulatory and safety fda.gov
  3. Sunscreen: How to Help Protect Your Skin from the Sun U.S. FDA Regulatory and safety fda.gov
  4. How to select a sunscreen American Academy of Dermatology Clinical guidance aad.org
  5. Sunscreen FAQs American Academy of Dermatology Clinical guidance aad.org
  6. Ultraviolet radiation and human health DermNet NZ Clinical guidance dermnetnz.org

SYNC does not publish medical advice. Nothing here replaces a consultation with a doctor or a pharmacist about your own skin.