Kallgren Dermatology Clinic in Boulder knows you value your outdoor lifestyle as we do ours, but there are precautions you have to take to make sure you can enjoy it for decades to come. One such precaution in using the best sunscreen possible. Choosing the right sunscreen can be a daunting task if you don’t know what you are looking for. We recently covered why you should pick a broad spectrum sunscreen and will cover SPF this week. We recommend a broad spectrum sunscreen, such as EltaMD Sunscreen.

What does SPF Mean?

  • SPF stands for Sun Protection Factor and is an indication of the protection level against UVB rays.  
  • UVB are the rays that cause tanning and sunburn (think B for burn).
  • It does not give any indication of protection levels against UVA rays which are responsible for the visible signs of aging as well as being active agents in skin cancer.
  • The level of SPF can be thought of as a factor of how long you can stay in the sun without burning.
  • If you normally can be in the sun for ten minutes without burning and use a SPF 15 sunscreen, you multiply ten minutes by 15 allowing you to stay in the sun for 150 minutes without burning.
  • Again, SOF gives no indication of how long the sunscreen protects you against UVA rays, which you really need to protect your skin from damage.
  • The best way to protect yourself against skin damage from the sun is to limit exposure and use a broad spectrum sunscreen when you are in the sun.

You should also have a yearly skin check appointment to check for signs of cancer. Call Kallgren Dermatology Clinic for a yearly check up appointment.