Sunscreen Frequently Asked Questions | Sun Day Sunday

Happy Sunday! Today kicks off a new seasonal series I am doing: Sunday Sun Day! Get out your favorite sunhat to celebrate! Topics in Sunday Sun Day will include anything related to the sun and your skin, and be filled with clinical knowledge from my experience as a Physician Assistant, as well as several tips and tricks. Today will cover Sunscreen Frequently Asked Questions and a fun sundress. My hope is to better your skin, prevent ultraviolet radiation damage and get excited for the summer!

Q: How do much sunscreen do I need to apply?

A: Most of us actually apply less sunscreen than needed. To remember how much to apply, use “The Teaspoon Rule”. Eyeball out sunscreen measurements, using one teaspoon for the face and neck, two teaspoons for the chest and back, one teaspoon for each arm and one teaspoon for each leg.

Another way you can remember how much to apply is to use enough sunscreen on your body that would fill a shot glass, or one ounce.

Reapply sunscreen every two hours while in the sun, after swimming/sweating, or according to directions on the bottle.

Q: What strength of sunscreen should I use?

A: In a study responded by over 500 dermatologists in the United States, the results were mixed. The majority of dermatologists (72%) recommended SPF 30 to SPF 49 to patients. Of the other dermatologists, 16% recommended SPF 50 to SPF 69, and 8% recommended SPF 70+ or higher.

The American Academy of Dermatology recommends choosing a sunscreen that is SPF 30 or greater, broad-spectrum (protects against UVA and UVB rays) and water-resistant.

Keep in mind if you live in the southern half of the U.S. or have lighter skin tone, you may want to consider sunscreens with higher SPF ratings.

Source: Assessing frequency and quality of US dermatologist sunscreen recommendations to their patients. Winkelmann, Richard R. et al. Journal of the American Academy of Dermatology, Volume 72, Issue 3, 557-558

Q: Can I use a bottle of sunscreen from last year? Will it lose its strength?

A: FDA regulations require that all sunscreens either have an expiration date listed or have a shelf-life longevity with their original strength for three years. In other words, if there is no expiration date on the bottle, expect its listed SPF strength to last for three years. Of course, always discard the sunscreen if it appears to have changed color or consistency.

Q: Can I use sunscreen in the form of cosmetics or moisturizers?

A: Yes, however keep in mind that sunscreen needs to be applied frequently throughout the day to achieve optimal sun protection.

Q: What are some sunscreens you recommend?

A: When picking out a sunscreen it’s important to have SPF 30 or greater, broad-spectrum to cover UVA and UVB rays, and water-resistance if getting sweaty or wet in the pool. I was recommended by my dermatologist to use Elta MD UV Sport and love it for days I am spending outside or on a long jog. I also use a protective daily lotion on days I’m not spending a large amount of time outside, such as going to and from work. Blue Lizard is another great option and helped me conquer a sunburn-free trip to Australia.

Q: Can I use a combination sunscreen and insect repellant?

A: The American Academy of Dermatology recommends purchasing and using these products separately. Sunscreen needs to be applied generously and often, whereas insect repellant should be used sparingly and much less frequently.

Q: What is the difference between water-resistant and very water-resistant sunscreen?

A: Sunscreens are labeled by the FDA as being water-resistant or very water-resistant. When sunscreens are labeled “water-resistant” that means they can provide 40 minutes of protection while swimming. Those labeled as very water-resistant provide 80 minutes of protection in the water. During this time they must maintain their listed SPF strength. Labels such as “waterproof” are not FDA approved anymore.

Sunscreens that are not water-resistant (or without any water-resistant label) should just for the SPF benefit, and not for coverage while swimming.

My hope is that these Sunscreen Frequently Asked Questions bring knowledge and protection to you and your family! As mentioned early, Sunday Sun Day will be a reoccuring Sunday feature for the next few weeks, so be sure to return back for more relevant skin and sun discussion.

About the outfit: This sundress is so perfect for a Sunday afternoon! The dynamic color pattern energizes the soul and is unlike any other. Enjoy a figure flaunting style with a cinched waist and full skirt. Tie the back with a beautiful bow with long, streaming ties that add an elegant detail. This dress is available for rent or purchase. (I rent using Unlimited program talked about here.) I recommend sizing up as the waist does run on the smaller size. Pair with a white bandeau for added modesty, if desired. An affordable, similar purchase option is available here and here.