Journal · Protection · 6 min
Mineral versus chemical filters: the real difference.
One reflects, one absorbs. The story of which is better on skin is more nuanced than either camp will admit.
The Biomedical Emporium® formulation desk
3 February 2026
Mineral filters like zinc oxide sit on the skin and reflect UV. Chemical filters absorb UV, convert it to heat, and dissipate it. Both work. The comparison people make between them is usually about texture, not physics.
Mineral is broader spectrum out of the box, forgives sensitive skin, and has decades of safety data. Chemical is cosmetically elegant, layers under makeup without white cast, and outperforms mineral in high-UVA loads at low percentages. The tradeoff is skin biocompatibility, and the newest chemical filters have narrowed that gap.
Our house SPF is mineral first, because Emirati skin often reads reactive under repeated chemical filter exposure. Your mileage may vary. Choose by what you will actually reapply.
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