As someone who loves spending time outdoors, I’ve always been a huge advocate for sun protection. Applying sunscreen is, without a doubt, one of the most important things you can do for your skin. However, there are so many myths and misconceptions surrounding SPF that it can be tough to know what’s true and what’s not. So, I’ve decided to put on my scientist glasses and shed some light on this topic.

🙅‍♀️ Myth: Higher SPF means more protection

One of the most common myths about SPF is that a higher number automatically means more protection. Unfortunately, this isn’t entirely true. SPF (which stands for Sun Protection Factor) measures how long it would take for your skin to burn with sunscreen compared to without it. So, an SPF 30 will theoretically protect your skin for 30 times longer than if you weren’t wearing sunscreen at all. However, this doesn’t necessarily mean it’s better than an SPF 15 or 20. In fact, SPF 30 blocks about 97% of UVB rays, while SPF 50 blocks about 98%. So, that extra 1% of protection doesn’t necessarily justify the higher price and thicker consistency that often comes with higher SPF sunscreens.

A sunscreen bottle with a 30 and a 50 label on it, with the 30 crossed out and an arrow pointing to the 50

🤢 Myth: Sunscreen isn’t necessary if you have darker skin

This myth is particularly dangerous because all skin types and tones are at risk of skin damage and skin cancer caused by UV exposure. While it’s true that people with darker skin tones have more melanin (which provides some natural protection), it’s not enough to skip sunscreen altogether. In fact, skin cancer rates among people of color have been rising in recent years, likely due to this misconception. So no matter what your skin tone is, make sure to wear sunscreen with an appropriate SPF.

A diverse group of people, each with different skin tones, applying sunscreen together

🤔 Myth: Chemical sunscreens are dangerous

There has been a lot of debate lately about the safety of chemical sunscreens, with some studies linking certain ingredients to hormone disruption and other health issues. However, the majority of research suggests that most chemical sunscreens are safe to use. If you’re still worried about the potential risks, there are plenty of mineral sunscreens (which use ingredients like zinc oxide or titanium dioxide) that provide effective protection without the use of chemicals.

A person holding two bottles of sunscreen, one chemical and one mineral

🌡️ Myth: You only need to apply sunscreen once a day

I’m sorry to break it to you, but this is a big no-no. In order to maintain proper protection, you should be reapplying your sunscreen every two hours (more frequently if you’re swimming or sweating). This is especially important if you’re using a chemical sunscreen, which can break down over time when exposed to UV rays. Don’t forget to apply sunscreen to areas like your lips, ears, and the tops of your feet, which are often overlooked but just as vulnerable to sun damage as the rest of your body.

A person applying sunscreen to their feet, with a sun and clock emoji next to them to denote the need for reapplication every two hours

🌞 Myth: You don’t need sunscreen on cloudy days

Just because the sun isn’t shining brightly doesn’t mean it’s not affecting your skin. Up to 80% of UV rays can penetrate clouds, meaning that you’re still at risk of sun damage on cloudy days. In fact, some studies have shown that people are more likely to get sunburned on cloudy days because they feel a false sense of security and forget to wear sunscreen. So always make sure to protect your skin, even when it’s overcast.

A picture of clouds with a sun peeking through, with a sunscreen bottle and an umbrella emoji next to it to denote the need for protection

🌞 Wrapping up

Now that we’ve debunked some of the common myths and misconceptions surrounding SPF, hopefully you feel more confident in your sun protection game. Just remember: always wear sunscreen (and reapply it often), regardless of your skin tone, and don’t fall for marketing ploys that suggest higher SPF automatically means better protection. Your skin (and future self) will thank you.

A cartoon of a happy person standing in front of a sunny beach with a shaded umbrella, wearing a hat and sunglasses, and holding a bottle of sunscreen