Overview
Facts about SPF
- Broad-spectrum sun protection products help protect your skin against both UVA and UVB rays.
- A sunscreen should be applied 15 minutes before exposing your skin to the sun – and reapplied at least every two hours.
- Physical or mineral-based UV-protection ingredients like zinc oxide and titanium dioxide reflect UV rays..
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References
1.“How to Protect Your Skin from UV Rays”, American Cancer Society.