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Base & Function

Titanium Dioxide

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BarrierSoothing
INCI: Titanium Dioxide
In short · TL;DR
Category
Base & Function
Effect
An inorganic UV filter that primarily scatters and absorbs UVB.
Concentration
Roughly a few % to about 25% in sunscreen formulations (the maximum permitted level depends on each country's regulations).
Effect
An inorganic UV filter that primarily scatters and absorbs UVB.
Mechanism
High-refractive-index particles scatter and reflect UV radiation to reduce its penetration. Protection in the long-wave UVA range is weaker than zinc oxide.
Typical concentration
Roughly a few % to about 25% in sunscreen formulations (the maximum permitted level depends on each country's regulations).
Onset
Functions physically immediately after application.
Cautions
Tends to leave a white cast. Feel varies with surface treatment and particle size. Pharmaceutical (drug) efficacy claims are not permitted.
Evidence & references
https://pubchem.ncbi.nlm.nih.gov/compound/26042
Journal

Related Journal

2
Skin Longevity SeriesMidsummer UV Final Defense — Preparing for Four Layers: UVA, UVB, Visible Light & Near-InfraredSkin Longevity SeriesA Century of Beauty Research
This page is reference information and does not guarantee efficacy. Figures vary by test conditions (in vitro / manufacturer / concentration). It does not indicate pharmaceutical efficacy.
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