Zinc Oxide / Titanium Dioxide / Broad-Spectrum UV Filter
The single most evidence-backed anti-aging intervention. UV drives 80–90% of visible skin aging, hyperpigmentation and skin cancer risk. SPF 30 blocks ~97% UVB; SPF 50 blocks ~98%. Mineral filters (zinc oxide, titanium dioxide) physically deflect UV; chemical filters absorb and convert UV to heat.
Final AM step, every day, 365 days/year. Apply 1/4 teaspoon (2mg/cm²) for full face. SPF 50 preferred. Reapply every 2 hours in direct sun.
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