**Denver Sun: Altitude Hiding Skin's SPF Risk?**
By Franklin Everett ShawForget the beach. Denver’s sun is a different beast altogether. You might think you’re safe just because you’re not near the ocean, but that’s a dangerous misconception. Denver’s altitude, combined with the intense Colorado sun, demands a serious upgrade to your sunscreen game.
Denver sits at a mile high, and that elevation drastically changes the sun’s intensity. The atmosphere is thinner, meaning less UV radiation is filtered out. This translates to a higher risk of sunburn and long-term skin damage, even on cloudy days.
Think of it this way: every 1,000 feet you ascend, UV radiation increases by roughly 4-5%. Denver’s already got a head start.
But it’s not just the altitude. Denver’s outdoor lifestyle means you’re likely spending more time exposed to the sun. Hiking Red Rocks, skiing in the Rockies, even just walking around Wash Park – these activities all increase your UV exposure.
And don’t forget about the snow. It reflects up to 80% of UV rays, essentially doubling your exposure when you’re skiing or snowboarding. Water also reflects sunlight, so even a leisurely afternoon by Sloan’s Lake can be risky.
So, how do you protect yourself? It’s more than just slapping on any old sunscreen.
First, understand SPF. SPF measures how long it takes for UVB rays to redden your skin compared to unprotected skin. It doesn’t measure protection from UVA rays, which also contribute to skin aging and cancer.
A common mistake is thinking SPF 30 is twice as good as SPF 15. It’s not. SPF 15 blocks about 93% of UVB rays, while SPF 30 blocks about 97%. SPF 50 blocks about 98%. The higher you go, the smaller the incremental benefit.
However, in Denver, I recommend at least SPF 30, and preferably SPF 50, especially for prolonged outdoor activities. Look for “broad spectrum” sunscreen, which protects against both UVA and UVB rays.
Now, let’s talk product recommendations. You can find these at most Denver drugstores like Walgreens or King Soopers.
For everyday use: EltaMD UV Clear Broad-Spectrum SPF 46. It’s lightweight, oil-free, and great for sensitive skin. It’s available at many dermatologists’ offices and some local pharmacies.
For hiking and outdoor activities: Neutrogena Ultra Sheer Dry-Touch Sunscreen SPF 55. It’s water-resistant and provides excellent protection. You can find it at Target or Walmart.
For skiing: La Roche-Posay Anthelios Melt-In Sunscreen Milk SPF 60. It’s water-resistant, provides high protection, and is suitable for sensitive skin. Available at Ulta or online.
For lips: Aquaphor Lip Repair with SPF 30. Don’t forget your lips! They’re often overlooked but highly susceptible to sun damage.
But the right sunscreen is only half the battle. Application is key.
Most people don’t apply enough sunscreen. You need about one ounce (a shot glass full) to cover your entire body. Don’t skimp!
Apply sunscreen 15-30 minutes before going outside. This allows it to bind to your skin.
Reapply every two hours, or immediately after swimming or sweating. Set a timer on your phone to remind you.
Don’t forget often-missed areas like your ears, the back of your neck, and the tops of your feet.
Beyond sunscreen, consider these additional protective measures:
Wear protective clothing: Long sleeves, pants, and wide-brimmed hats can significantly reduce your sun exposure. Look for clothing with a UPF (Ultraviolet Protection Factor) rating.
Seek shade: Especially during peak sun hours (10 am to 4 pm).
Wear sunglasses: Protect your eyes from UV damage. Look for sunglasses that block 99-100% of UVA and UVB rays.
Consider a daily Vitamin D supplement: While sunscreen is crucial, it can reduce your body’s ability to produce Vitamin D. Talk to your doctor about whether a supplement is right for you.
Let’s address some common misconceptions about sunscreen at altitude:
“I don’t need sunscreen on cloudy days.” Wrong! Clouds only filter out a portion of UV rays. You can still get sunburned on a cloudy day in Denver.
“My makeup has SPF, so I’m protected.” While some makeup contains SPF, it’s usually not enough to provide adequate protection. You still need to apply a separate sunscreen.
“I only need sunscreen when I’m at high altitude.” While the risk is higher at altitude, you still need sunscreen even at lower elevations.
Finally, let’s talk about skincare. Sun damage can lead to premature aging, wrinkles, and sunspots. Incorporate these ingredients into your routine:
Vitamin C: A powerful antioxidant that helps protect against sun damage and brighten skin. Look for serums containing L-ascorbic acid.
Retinoids: Help to reduce wrinkles and improve skin texture. Start with a low concentration and gradually increase as tolerated.
Hyaluronic acid: A humectant that helps to hydrate the skin.
Denver’s sun is no joke. By understanding the risks and taking the right precautions, you can enjoy the city’s outdoor lifestyle without compromising your skin’s health. Don’t underestimate the power of a good sunscreen and a consistent skincare routine. Your skin will thank you for it.