Why Daily SPF Is Your Best Anti-Ager
The Photoaging Reality
Up to 80% of visible facial aging is caused by UV exposure. Sunscreen is the most effective anti-aging product.
UVA vs UVB
- UVB - sunburns; partially blocked by windows
- UVA - penetrates glass, breaks down collagen year-round
Choosing SPF
Minimum SPF 30, Broad Spectrum
SPF 30 blocks 97% of UVB. Broad spectrum ensures UVA protection.
Chemical vs Mineral
Zinc oxide offers broadest UVA coverage.
Application
1/4 teaspoon for face and neck. Reapply every 2 hours. Most people apply only 25-50% of needed amount.
Bottom Line
A $15 sunscreen daily outperforms a $200 retinol serum used inconsistently.
