How Zinc Oxide Actually Scatters UV on Skin
Zinc oxide sits on the skin surface and scatters, reflects, and absorbs UV radiation through its mineral crystal stru...
Read itLatest Articles
Does SPF Protect Against UVA and UVB?
SPF measures only UVB blocking. UVA protection depends on a sunscreen's specific filter chemistry and is shown separa...
Read itHow Sunscreen Degrades After Application
Sunscreen filters break down through UV exposure, heat, and oxidation. This piece explains the chemical mechanisms be...
Read itWhat UVA and UVB Protection Actually Differ By
UVA and UVB radiation damage skin through different mechanisms, and sunscreen filters address each one in distinct wa...
Read itWhat Broad-Spectrum Labeling Actually Certifies
Broad-spectrum labeling on sunscreen certifies a specific FDA test result for UVA protection, not a universal guarant...
Read itWhat Mineral Sunscreen Filters Actually Do Differently
Mineral sunscreen filters scatter and reflect UV light at the skin surface rather than absorbing it — a different phy...
Read itHow an SPF Number Actually Gets Calculated
SPF is calculated by comparing how long protected skin takes to redden versus unprotected skin under a standardized UV exposure test.
Read articleHow Chemical Sunscreen Filters Actually Absorb UV Light
Chemical sunscreen filters absorb UV radiation and convert it into small amounts of heat through a molecular energy-absorption process.
Read articleAll Sun Articles
- How Zinc Oxide Actually Scatters UV on Skin
- Does SPF Protect Against UVA and UVB?
- How Sunscreen Degrades After Application
- What UVA and UVB Protection Actually Differ By
- What Broad-Spectrum Labeling Actually Certifies
- What Mineral Sunscreen Filters Actually Do Differently
- How an SPF Number Actually Gets Calculated
- How Chemical Sunscreen Filters Actually Absorb UV Light