Q: Does it matter what kind of sunscreen I use?
A: Sunscreens come in a variety of forms such as lotions, gels, and sprays, so there are plenty of different options. Regardless of the type of sunscreen you choose, be sure that you use one that blocks both UVA and UVB rays and that it offers at least SPF 15.
Also, check the sunscreen’s expiration date. Sunscreen without an expiration date has a shelf life of no more than three years. Exposure to extreme temperatures can shorten the expiration date or shelf life of sunscreen.
Q: What does a sunscreen’s SPF rating mean?
A: Sunscreens are assigned a Sun Protection Factor (SPF) number according to their effectiveness in offering protection from UV rays. Higher numbers indicate more protection. As a rule of thumb, you should always use a sunscreen with at least SPF 15.
Q: Do sunscreens need to be reapplied during the course of a day?
A: Yes. Though recently developed sunscreens are more resistant to loss through sweating and getting wet than previous sunscreens were, you should still reapply frequently, especially during peak sun hours or after swimming or sweating.
