What it is & what it does
Zinc Oxide is a mineral broad-spectrum UV filter with coverage extending through UVB and UVA.
WHAT IT IS: Zinc Oxide is a mineral UV filter used in sunscreen formulations to cover a broad range of UVA and UVB wavelengths.
HOW IT WORKS / EVIDENCE: Its protective performance depends on dispersion, coating, particle properties and the other ingredients present. It is also used for some skin-protectant purposes in products designed for that role, but a general cosmetic containing Zinc Oxide is not automatically a sunscreen or medical treatment.
WHY THE FINISHED PRODUCT MATTERS: Only the tested final product can establish SPF, broad-spectrum labeling and water resistance. No ingredient name alone establishes the measured clinical result of a complete formula.
HOW IT WORKS / EVIDENCE: Its protective performance depends on dispersion, coating, particle properties and the other ingredients present. It is also used for some skin-protectant purposes in products designed for that role, but a general cosmetic containing Zinc Oxide is not automatically a sunscreen or medical treatment.
WHY THE FINISHED PRODUCT MATTERS: Only the tested final product can establish SPF, broad-spectrum labeling and water resistance. No ingredient name alone establishes the measured clinical result of a complete formula.
