Simple Facts about Sunscreen
Many patients ask us, “What is the best sunscreen?”
The simple answer is this: it is the one you will use every day.
As board-certified dermatologists, we look for certain requirements for a reliable and easy-to-use product.
What to look for:
The Truth about SPF:
The Higher, the Better
First, it is important that your product has a Sun Protection Factor (SPF) of 30 or higher. A 2019 medical study by Kohli et al* showed that on a typical beach day, real life use of SPF 100 sunscreen protected patients from sunburn better than SPF 50 sunscreen. This study helps settle the age-old derm debate of whether or not there is a benefit to an SPF greater than 30. The answer is a resounding “Yes.”
Broad-spectrum
Is a Must
Your sunscreen needs to offer broad-spectrum protection:
SPF refers only to protection against UVB rays, which are thought to be the major cause of sunburns.
Broad-spectrum sunscreens also offer protection from UVA rays, which penetrate the skin more deeply and are felt to be responsible for premature skin damage and skin aging.
Find a Product that Works for You
The latest sunscreen formulations offer comfort, choice, and ease of use. Choose from sprays, gels, lotions, and creams based on personal preference. There is a perfect sunscreen for every individual. It is just a matter of getting the right recommendation for your needs.
Physical vs.
Chemical Protection
Sunscreens come in physical and chemical formulations:
Physical sunscreens protect against UVA and UVB rays by coating the skin and reflecting the sun’s rays—zinc-based products (yes, they come in clear now!) are an example. These are often ideal for patients with sensitive skin and for young children.
Chemical sunscreens work by absorbing the sun’s rays. They tend to be less pasty and more cosmetically elegant.
Keep Water-resistance in Mind
Some sunscreens are better for beach and pool days due to water-resistant properties. However, we always recommend reapplying immediately after exiting the water or sweating, since all sunscreens will wear off. In addition, sunscreen ingredients degrade over two hours, so reapplication is needed regardless of your specific activities.
Proper Use Is Key—Daily!
Proper use and application is critical:
The first rule is to use sunscreen daily! Keep in mind that ultraviolet light comes through windows and clouds.
For outdoor activities, sunscreen should be applied 20 minutes prior. Two ounces covers a typical adult body.
Sunscreen wears off over time, so reapplication every two hours is ideal.
If you are going in and out of the water or taking part in sweaty activities, more frequent applications are needed.
Watch the
Expiration Date
Sunscreens have a shelf life and will expire.
Open containers should not be used past one year.
Do not leave sunscreen in hot locations as this tends to degrade the active ingredients, leaving them less effective.
What about Moisturizers with SPF?
Moisturizers with sunscreen do not provide adequate protection for outdoor activity and year-round use. We tend to apply moisturizers lightly or inconsistently. It’s best to use a product designed primarily for sun protection.
Other Ways to Protect Your Skin
Other options that help you keep your skin healthy—along with wearing your sunscreen—include:
Avoiding prolonged sun exposure during mid-day hours
Wearing UV-protective clothing and wide-brimmed hats
Seeking shade
In Short
Don’t get bogged down in sunscreen myths. There is scientific evidence backing up the protective properties of sunscreen and the benefits of daily use. With so many options available, your dermatologist can recommend a sunscreen that suits you. Consider sunscreen use a major step in your healthy skin habits and anti-aging routine.
* Kohli I, Nicholson CL, Williams JD, Lyons AB, et al. Greater efficacy of SPF 100+ in sunburn prevention during five consecutive days of sunlight exposure: A randomized, double-blind clinical trial. J Am Acad Dermatol 2019 Sep 19 [Epub ahead of print].
All sunscreens aren’t created equal. Here are our top picks:
EltaMD UV Clear Broad-Spectrum SPF 46
One of our most popular products, this lightweight and elegant broad-spectrum sunscreen is especially beneficial for skin prone to breakouts from acne and rosacea. It has both moisturizing and anti-inflammatory properties and comes in a tinted option for year-round use.
Available to purchase at SSDP.
EltaMD UV Shield Broad-Spectrum SPF 45
An excellent broad-spectrum sunscreen for oily to normal skin, the sheer formula works nicely alone or under makeup.
Available to purchase at SSDP.
EltaMD UV Physical Broad-Spectrum SPF 41
This chemical-free, mineral-based formula with zinc oxide and titanium dioxide works for the most sensitive skin. The tinted formula is great for year round use and may substitute for makeup. Water-resistant properties are a bonus. EltaMD UV Pure, the untinted version, is also an excellent option for children and adults with sensitive skin.
Available to purchase at SSDP.
CeraVe Mineral Sunscreen Stick Broad-Spectrum SPF 50
A nice OTC option in a roll-on stick, this one checks all the boxes for dermatologists. It’s appropriate for all skin types, even the most sensitive, as well as for children. It goes on clear and is water resistant.
Anthelios Ultra Light Fluid Facial Sunscreen SPF 60 by La Roche-Posay
This OTC sunscreen offers broad spectrum protection and water resistance in a lightweight, elegant formula. It’s best for combination-to-oily skin types and an excellent year-round option.
