Mineral vs chemical sunscreen: which UV filters to choose

Mineral sunscreens protect with zinc oxide or titanium dioxide, while chemical sunscreens use organic UV filters that absorb UV light. Both work when used properly. Mineral filters tend to suit sensitive skin and young children better; chemical filters usually feel lighter and leave no white cast. Pick the one you will wear daily and reapply.

How mineral and chemical UV filters work

All sunscreen filters stop UV rays from damaging your skin cells. Mineral (physical) filters are fine particles of zinc oxide or titanium dioxide. They mostly absorb UV light, and also reflect and scatter some of it. Zinc oxide covers a broad range of UVA and UVB rays on its own.

Chemical (organic) filters are molecules that absorb UV light and release it as a small amount of heat. Each one covers part of the UV spectrum, so formulas combine several. Many modern sunscreens are hybrids that mix mineral and chemical filters.

Zinc oxide sunscreen: pros and cons

Zinc oxide is gentle, broad-spectrum and stable in sunlight, which is why it appears in sunscreens for babies, sensitive skin and diaper creams. Dermatologists often recommend mineral sunscreen for people with sensitive skin, rosacea or eczema-prone skin.

The main drawbacks are cosmetic. Mineral formulas can feel heavier, look chalky on medium and deep skin tones and need to be spread evenly to protect well. Tinted versions help with the white cast and can also add some protection against visible light.

Is oxybenzone safe? What regulators say about chemical filters

In the US, the FDA has proposed that zinc oxide and titanium dioxide be considered generally recognized as safe and effective. For 12 older filters, including oxybenzone and avobenzone, it has asked manufacturers for more safety data. The FDA stresses that this is not a finding that they are unsafe; it reflects the fact that people now use far more sunscreen than when these filters were first approved.

Studies have shown that some chemical filters are absorbed into the bloodstream. Absorption alone doesn't mean harm, and the American Academy of Dermatology notes that the science doesn't show that sunscreen ingredients available in the US are harmful to health. Some filters, notably oxybenzone, homosalate and octinoxate, are studied as possible endocrine disruptors, and the EU has lowered the maximum amounts allowed for some of them after safety reviews.

Meanwhile, newer filters are arriving. In June 2026 the FDA added bemotrizinol, a filter long used in Europe and elsewhere, to the US list of permitted sunscreen ingredients. Products containing it will reach US shelves gradually. Read more about the bigger picture in our guide to endocrine disruptors in cosmetics.

Titanium dioxide: sprays, powders and inhalation

Titanium dioxide is considered safe on intact skin. The concern is inhaling fine particles: the International Agency for Research on Cancer classifies titanium dioxide as possibly carcinogenic when inhaled, based mainly on animal studies. That is why EU rules restrict titanium dioxide in products that could be breathed in, such as sprays and loose powders.

For any spray sunscreen, mineral or chemical, don't spray it directly on your face or near your mouth. Spray it into your hands and rub it in, and avoid spraying in the wind, where much of the product ends up in the air instead of on your skin.

What does "reef safe" sunscreen mean?

"Reef safe" and "reef friendly" are marketing terms without an official definition, so they don't guarantee anything. Research summarized by NOAA, the US ocean agency, links some sunscreen chemicals, such as oxybenzone, octinoxate and octocrylene, to harm in corals and other marine life, and a 2022 US National Academies review called for a fuller risk assessment of UV filters. Hawaii has banned the sale of sunscreens containing oxybenzone and octinoxate.

If protecting reefs matters to you, check the UV filters on the label instead of the claim, and combine sunscreen with UV-protective clothing and shade. NOAA considers mineral sunscreens the better option, although nano-sized mineral particles are also being studied.

How Green Point rates UV filters

Green Point rates UV filters cautiously. Ingredients are classified as Chemical UV filter or Mineral UV filter, and filters with concentration limits are flagged as Regulated. Several organic filters, including oxybenzone, octocrylene, homosalate and octinoxate, are also classified as suspected endocrine disruptors, and titanium dioxide is flagged as a Regulated mineral UV filter because of the EU limits on its use.

This means a sunscreen can get a modest score even if it protects you well. The score reflects precautionary ingredient ratings, not SPF or UVA protection. Don't skip sunscreen because of a score: use the ingredient details to compare products you would actually wear, and see our sunscreen guide for how much to apply.

Which sunscreen is best for sensitive skin?

• Sensitive, rosacea-prone or eczema-prone skin: a fragrance-free mineral sunscreen with zinc oxide.
• Oily or acne-prone skin: a lightweight fluid or gel labeled non-comedogenic, mineral or chemical.
• Medium or deep skin tones: a tinted mineral sunscreen or a chemical sunscreen to avoid a white cast.
• Children over 6 months: a broad-spectrum mineral sunscreen; see our baby skincare guide.