- SPF Protection is Different for Everyone. If you burn in 12 minutes, SPF 30 protects you for 6 hours if you reapply properly during that time, if you burn in 6 minutes, SPF30 protects you 3 hours.
- Climate, altitude, time of year and medication, reflective surfaces can increase the amount of UV reaching your skin, and shorten the time before you burn
- You need to apply more sunscreen than you think to get full SPF factor
