What it does
- Provides broad-spectrum UVA/UVB protection as a mineral filter.
- A recognised skin protectant that soothes and comforts (e.g. nappy/diaper care).
- Gentle and suitable for sensitive skin.
How it works
Zinc oxide is a well-documented mineral that reflects and absorbs UV across a broad spectrum and is a recognised skin-protectant ingredient. It is dispersed (not dissolved) as a powder; particle size and coatings affect finish and whitening. Approved concentrations and status as a UV filter/skin protectant vary by region.
Use level
- Typical use level
- sunscreen commonly 5–25%; lower as a protectant
Sunscreens commonly use 5–25%; lower levels are used purely as a soothing skin protectant. Follow the UV-filter/skin-protectant limits for your market.
Formulation considerations
- Insoluble; dispersed as a coated powder for even finish.
- Higher levels can leave a white cast; coatings and particle engineering help.
- Follow regional UV-filter and skin-protectant regulations.
What it pairs with & what to avoid
Pairs well with
- Emollients and dispersing aids
- Soothing actives
Use with care / avoid
- Uneven dispersion (white cast, patchy protection)
Regulatory status
Zinc oxide is listed in the EU CosIng database and is regulated as a UV filter and/or skin protectant depending on the market; follow current regional limits.
Common questions
Is zinc oxide a good sunscreen?
Yes; it is a broad-spectrum mineral UV filter, and it is gentle enough for sensitive skin.
Why does zinc oxide leave a white cast?
It is a white mineral powder; coatings and finer particle grades reduce whitening.
What percentage of zinc oxide is used?
Sunscreens commonly use 5–25%; less as a soothing skin protectant — follow regional limits.