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Base & Functional

Zinc Oxide

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BarrierSoothing
INCI: Zinc Oxide
In short · TL;DR
Category
Base & Functional
Effect
An inorganic (mineral) UV filter that scatters and absorbs UV radiation (UVA-UVB) to protect the skin
Concentration
Roughly a few % to about 25% in sunscreen formulations (the maximum permitted level depends on each country's regulations)
Effect
An inorganic (mineral) UV filter that scatters and absorbs UV radiation (UVA-UVB) to protect the skin
Mechanism
Particles reflect and scatter UV radiation and absorb a portion of it, reducing how much reaches the skin surface. Covers a broad wavelength range
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. For nano-sized grades, check formulation and labeling rules. Drug-like efficacy claims are not permitted
Evidence & references
https://pubchem.ncbi.nlm.nih.gov/compound/3007857
Journal

Related Journal

5
Skin Longevity SeriesMidsummer UV Final Defense — Preparing for Four Layers: UVA, UVB, Visible Light & Near-InfraredSkin Longevity SeriesThe Science of Summer Acne—Sweat, Sebum, Clogged Pores, and the Ecology of C. acnesSkin Longevity SeriesThe Season-Change Switch: How the Autonomic Nervous System and the Skin Barrier Move TogetherSkin Longevity SeriesA Century of Beauty ResearchSkin Longevity SeriesGifting "Functional Longevity" This Christmas — Choosing Skincare as a Scientific Gift
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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