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Does a higher SPF last longer than a lower SPF?

A higher SPF does not necessarily last longer than a lower SPF. SPF, or Sun Protection Factor, indicates the level of protection against UVB rays, but it does not extend the time you can spend in the sun without reapplying sunscreen. Regardless of the SPF, sunscreen should be reapplied every two hours, or more often if swimming or sweating.

Key points:

• Higher SPF offers more protection from UVB rays.
• Reapplication is essential for all SPF levels.
• Duration of sun exposure affects the need for reapplication.
• Factors like sweating and swimming can reduce effectiveness.

This text has been fact-checked for accuracy by medino's clinical team.