SPF stands for Sun Protection Factor. This number is assigned to sunscreen and reflects the effectiveness of the product in its ability to offer protection from UV rays. A higher number indicates higher protection.
As a general rule, you should not use a sunscreen with a rating of less than SPF 15.
When you must remain in the sun for long periods of time, consider a sunscreen with an SPF rating of up to 30. Top sunscreens are rated 30+ where you are assured of a 30 SPF rating and often better, but never less. This is a good thing. Some products offer maximum protection.
When using any sunscreen, keep this in mind throughout the day…
Reapply - Reapply - Reapply
Use common sense here. If you are excessively sweating or swimming, your sunscreen will dissipate. Reapply often if you are active or exposed to water. Take a look at a Zinc sunscreen for maximum protection against UVA and UVB rays.
