Sunscreen products are essential for protecting us from skin cancer, premature aging, and other harmful effects of UV exposure. With so many products on the market, it can be overwhelming to know which sunscreen is the best choice. Here are some important tips to help you make an informed decision when selecting your sunscreen.
1. Understanding SPF (Sun Protection Factor)
SPF is used to measure how well a sunscreen protects you from sunburn. For example, SPF 15 allows you to stay in the sun 15 times longer than without protection. However, it’s important to note that SPF only measures protection from UVB rays, which are responsible for sunburn.
2. Choose a Broad-Spectrum Sunscreen
When selecting sunscreen, always choose a broad spectrum product. Broad spectrum means the sunscreen offers protection from both UVA and UVB rays. UVA rays penetrate deeper into the skin and are responsible for skin aging and skin cancers, while UVB rays cause sunburn. Look for ingredients like zinc oxide (5%) or avobenzone, which provide broad-spectrum protection.
3. SPF 15 and Lower Sunscreens
The FDA has recently announced that sunscreens with SPF 15 and lower cannot claim to provide anti-aging or anticancer benefits on their labels. Studies have shown that sunscreens with SPF below 15 do not offer adequate protection from the sun’s harmful rays. To ensure better protection, opt for sunscreens with SPF 30 or higher.
4. Water-Resistant vs. Waterproof Sunscreens
It’s important to note that waterproof and sweat-proof sunscreens no longer exist. The FDA now requires sunscreens to be labeled as water-resistant, which means they stay effective for a limited time when swimming or sweating. Always check the label for the water resistance duration—usually 40 to 80 minutes—and reapply sunscreen as necessary.
5. How Much Sunscreen to Apply
To get the full SPF protection listed on the label, you must apply a shot glass amount of sunscreen to your body and face. If you apply less than that, you won’t get the advertised level of protection. If you tend to use less sunscreen, consider going for a higher SPF to ensure adequate protection.
