Houston's Heat: Asphalt Melting Biotin Youth?

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
March 6, 2026

Houston summers are brutal. The humidity clings to you like a second skin, the sun beats down with relentless force, and suddenly, your hair feels like straw and your skin resembles a well-worn leather boot. But fear not, fellow Houstonians! We can fight back against the elements and maintain healthy skin and hair, even with the sun trying its best to ruin our day.

This isn’t your average “drink water and wear sunscreen” advice. We’re diving deep into the specifics of biotin supplementation, heat-protectant hair products tailored for our climate, and sunscreens that actually work with biotin, all available right here in Houston.

Biotin, also known as Vitamin B7, is often touted for its benefits to hair, skin, and nails. Many Houston residents take biotin supplements hoping to combat hair thinning or brittle nails, issues that can be exacerbated by the intense heat and humidity. However, biotin can also interfere with certain lab tests, potentially leading to inaccurate results. Always inform your doctor if you are taking biotin supplements, especially before any blood work.

Now, let’s talk dosage. The recommended daily intake of biotin is around 30 micrograms (mcg). Many supplements contain significantly higher doses, sometimes thousands of mcg. While biotin is generally considered safe, excessive intake can cause skin rashes in some individuals. Start with a low dose (around 300 mcg) and gradually increase it if needed, paying close attention to how your body reacts. You can find biotin supplements at most drugstores in Houston, like CVS or Walgreens. Look for brands like Nature’s Bounty or NOW Foods, which offer a range of dosages.

The Houston heat can wreak havoc on your hair, especially if you’re using biotin. Biotin can sometimes make hair feel drier, so it’s crucial to use heat-protectant products. Look for products specifically designed for humid climates. These products often contain ingredients like silicones or polymers that create a barrier against moisture, preventing frizz and protecting your hair from heat damage.

One excellent option is the Kenra Professional Platinum Blow-Dry Mist. It’s available at Ulta Beauty stores across Houston. This mist not only protects against heat but also reduces drying time, which is a bonus in our sweltering summers. Another great choice is the Bumble and Bumble Hairdresser’s Invisible Oil Heat/UV Protective Primer, available at Sephora in the Galleria. It’s lightweight and provides both heat and UV protection, essential for Houston’s sunny days.

When applying heat protectant, don’t just spritz it on haphazardly. Section your hair and apply the product evenly from root to tip. This ensures that every strand is protected. Also, avoid using excessive heat on your hair. Let it air dry as much as possible, and when you do use heat styling tools, use the lowest setting possible.

Sunscreen is non-negotiable in Houston. The UV index is consistently high, and protecting your skin is crucial. But not all sunscreens are created equal, especially when you’re taking biotin. Some studies suggest that biotin may increase sensitivity to the sun in certain individuals. While more research is needed, it’s best to err on the side of caution.

Opt for a broad-spectrum sunscreen with an SPF of 30 or higher. Look for sunscreens that contain zinc oxide or titanium dioxide, as these mineral sunscreens are generally considered safer and more effective. Avoid sunscreens with oxybenzone and octinoxate, as these chemicals can be harmful to the environment and may disrupt hormones.

A great option available at Target stores throughout Houston is the La Roche-Posay Anthelios Melt-In Sunscreen Milk. It’s broad-spectrum, SPF 60, and contains antioxidants to further protect your skin. Another excellent choice is the EltaMD UV Clear Broad-Spectrum SPF 46, available at many dermatologists’ offices and online retailers. It’s oil-free and non-comedogenic, making it a good option for those with acne-prone skin.

Don’t forget to reapply sunscreen every two hours, or more often if you’re swimming or sweating. And remember to apply it generously – most people don’t use enough sunscreen. A good rule of thumb is to use about an ounce (shot glass full) to cover your entire body.

One common mistake Houstonians make is only applying sunscreen when they’re going to the pool or beach. The sun’s rays can penetrate through clouds, and you’re exposed to UV radiation even when you’re just running errands. Make sunscreen a part of your daily routine, just like brushing your teeth.

Another pitfall is neglecting other forms of sun protection. Wear a wide-brimmed hat and sunglasses when you’re outdoors. Seek shade whenever possible, especially during the peak hours of the day (10 am to 4 pm). And consider wearing protective clothing, such as long sleeves and pants, when you’re spending extended periods of time in the sun.

Living in Houston means embracing the heat, but it doesn’t mean sacrificing your skin and hair health. By choosing the right biotin dosage, using heat-protectant hair products designed for humid climates, and selecting sunscreens that work with biotin, you can keep your skin and hair looking their best, even during the most brutal Houston summers. Remember to consult with your doctor or a dermatologist for personalized advice. Stay safe, stay hydrated, and stay protected, Houston!

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