Austin Asphalt: Sun Exposure, and Why Walkers Age Faster

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
March 15, 2026

The relentless Texas sun. It’s a badge of honor for some, a source of endless discomfort for others, and a silent accelerator of aging for many unsuspecting Austinites.

We often hear about the dangers of sun exposure, but rarely do we consider the cumulative effect of simply walking around a city like Austin, where the UV index frequently hits extreme levels. This isn’t just about avoiding sunburn at Zilker Park. It’s about the daily, insidious damage that adds up, leading to premature wrinkles, age spots, and a host of other skin issues.

The problem is amplified by Austin’s urban environment. Asphalt radiates heat, effectively baking pedestrians from below while the sun beats down from above. This double whammy significantly increases skin temperature, making it more susceptible to UV damage.

So, what can you do to protect yourself? It’s more than just slapping on some sunscreen before heading out. It requires a strategic approach tailored to Austin’s unique climate.

First, let’s talk clothing. Forget flimsy cotton t-shirts. They offer minimal sun protection. Instead, opt for tightly woven fabrics in dark colors. Look for clothing with a UPF (Ultraviolet Protection Factor) rating. A UPF of 50 means that only 1/50th of the sun’s UV radiation can penetrate the fabric. Companies like Coolibar and REI offer a wide range of UPF-rated clothing.

Consider long sleeves and pants, even in the heat. Lightweight, breathable fabrics like linen or bamboo can make this surprisingly comfortable. A wide-brimmed hat is essential. It shields your face, neck, and ears, areas often neglected by sunscreen. Baseball caps are better than nothing, but they leave your ears and neck exposed.

Next, sunscreen. Not all sunscreens are created equal. In Austin, you need a broad-spectrum sunscreen with an SPF of at least 30, but SPF 50 or higher is preferable. Broad-spectrum means it protects against both UVA and UVB rays. UVA rays penetrate deeper into the skin and are primarily responsible for aging, while UVB rays cause sunburn.

Look for sunscreens containing zinc oxide or titanium dioxide. These are mineral sunscreens that provide excellent broad-spectrum protection and are generally less irritating than chemical sunscreens. Apply sunscreen liberally, about an ounce (a shot glass full) for your entire body, and reapply every two hours, or more frequently if you’re sweating or swimming. Don’t forget often-missed areas like your ears, the back of your neck, and the tops of your feet.

Timing is crucial. Avoid walking during peak sun hours, typically between 10 am and 4 pm. If you must be outside during these times, seek shade whenever possible. Plan your routes to take advantage of tree-lined streets or buildings that offer shade. Consider using ride-sharing services or public transportation during the hottest part of the day.

Now, let’s delve into the less-discussed, but potentially powerful, realm of supplements. Photoaging damages collagen and reduces NAD+ levels in the skin.

NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme vital for cellular energy production and DNA repair. As we age, our NAD+ levels decline, making our skin more vulnerable to sun damage. Supplementing with NAD+ precursors, such as Nicotinamide Riboside (NR) or Nicotinamide Mononucleotide (NMN), may help to boost NAD+ levels and protect against photoaging. However, research is still ongoing, and it’s essential to consult with a healthcare professional before starting any new supplement regimen.

Collagen is the most abundant protein in our skin, providing structure and elasticity. Sun exposure breaks down collagen, leading to wrinkles and sagging. Supplementing with collagen peptides may help to replenish collagen levels and improve skin firmness. Look for hydrolyzed collagen peptides, which are more easily absorbed by the body. Again, consult with a healthcare professional before starting any new supplement regimen.

A common mistake is thinking that sunscreen is a one-and-done solution. It’s not. Sunscreen needs to be applied correctly and reapplied frequently to be effective. Another pitfall is neglecting other forms of sun protection, such as clothing and shade.

Many people also underestimate the cumulative effect of sun exposure. They might be diligent about sunscreen when they’re at the pool or the beach, but they don’t think about the daily exposure they get from walking to work or running errands.

Consider this scenario: You live in the Bouldin Creek neighborhood and walk to South Congress Avenue for lunch every day. That’s a 15-20 minute walk each way, exposing you to the intense Austin sun. Over time, this seemingly insignificant exposure can add up to significant skin damage.

To combat this, make a conscious effort to incorporate sun protection into your daily routine. Keep a bottle of sunscreen in your car or bag and apply it before you leave the house. Wear a hat and sunglasses whenever you’re outside. Walk on the shady side of the street.

Another challenge is finding sunscreens that are both effective and comfortable to wear in Austin’s humid climate. Many sunscreens can feel greasy or heavy, making them unpleasant to wear. Look for lightweight, oil-free sunscreens that are specifically formulated for oily or acne-prone skin.

Remember, protecting your skin from the Austin sun is an ongoing process, not a one-time event. By adopting a comprehensive approach that includes clothing, sunscreen, timing, and potentially supplements, you can significantly reduce your risk of photoaging and maintain healthy, youthful-looking skin for years to come. Don’t let the Texas sun prematurely age you. Take control and protect your skin.

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