Why Miami's "Healthy" Sunscreen May Be Hurting You

By Franklin Everett Shaw

March 19, 2026

The sun beats down relentlessly on South Florida. Tourists and locals alike flock to the beaches of Miami-Dade County, slathering on sunscreen to protect themselves from the intense UV rays. But what if that very sunscreen, meant to safeguard our skin, is silently harming our bodies and devastating the vibrant coral reefs that define our coastal paradise?

The truth is, many popular sunscreens contain chemicals like oxybenzone and octinoxate. These ingredients, while effective at blocking UV radiation, are increasingly linked to hormone disruption in humans and catastrophic damage to coral ecosystems. It’s time we ditch these toxic chemicals and embrace reef-safe alternatives, readily available right here in Miami.

Oxybenzone and octinoxate work by absorbing UV radiation and converting it into heat. This process protects our skin from sunburn and reduces the risk of skin cancer. However, studies have shown that these chemicals can also mimic hormones in the body, potentially disrupting the endocrine system. This disruption can lead to a range of health problems, including developmental issues, reproductive problems, and even an increased risk of certain cancers.

The impact on coral reefs is even more alarming. These chemicals cause coral bleaching, a process where corals expel the algae that live within their tissues, leading to starvation and death. Even tiny concentrations of oxybenzone and octinoxate can have devastating effects on coral larvae, hindering their development and preventing them from repopulating damaged reefs. The iconic reefs off the coast of Key Biscayne and throughout the Florida Keys are particularly vulnerable.

Florida has taken steps to address this issue. In 2020, the state passed a law banning the sale of sunscreens containing oxybenzone and octinoxate in Key West. While this law doesn’t extend to the entire state, it signals a growing awareness of the problem and a commitment to protecting our marine environment.

So, what’s the solution? The answer lies in mineral-based sunscreens. These sunscreens use zinc oxide and titanium dioxide as active ingredients. These minerals work by creating a physical barrier on the skin that reflects UV radiation, rather than absorbing it. They are considered to be much safer for both humans and the environment.

Finding reef-safe sunscreen in Miami is easier than you might think. Many local pharmacies, grocery stores, and surf shops now carry a variety of mineral-based options. Look for sunscreens that are labeled “reef-safe,” “reef-friendly,” or “mineral-based.” Check the ingredient list to ensure that oxybenzone and octinoxate are not included.

Here’s a step-by-step guide to finding and verifying reef-safe sunscreen in Miami:

1. Start with local pharmacies and grocery stores: Chains like CVS, Walgreens, Publix, and Whole Foods often stock mineral-based sunscreens. Look for dedicated sections for natural or eco-friendly products.
2. Explore surf shops and outdoor retailers: Stores like Island Water Sports, Quiet Storm Surf Shop, and REI are more likely to carry specialized reef-safe brands.
3. Check online retailers: Amazon, Thrive Market, and other online retailers offer a wide selection of mineral-based sunscreens.
4. Read the ingredient list carefully: Don’t rely solely on labels like “reef-safe.” Always double-check the ingredient list to ensure that oxybenzone and octinoxate are absent.
5. Look for certifications: Some sunscreens are certified by organizations like the Environmental Working Group (EWG) or the Natural Products Association (NPA). These certifications can provide an extra layer of assurance.
6. Consider tinted options: Zinc oxide can sometimes leave a white cast on the skin. Tinted mineral sunscreens can help to minimize this effect.

One common mistake people make is assuming that all sunscreens labeled “natural” are reef-safe. This is not always the case. Some “natural” sunscreens may still contain chemical UV filters that are harmful to coral reefs. Always read the ingredient list carefully.

Another challenge is finding a mineral-based sunscreen that provides adequate protection and feels good on the skin. Some mineral sunscreens can be thick, greasy, or difficult to apply. Experiment with different brands and formulations to find one that works for you. Look for lightweight, non-greasy options that are easy to blend into the skin.

Consider these specific examples of reef-safe sunscreens readily available in Miami:

• Thinksport SPF 50+: Widely available at Target and online, this sunscreen is a popular choice for athletes and outdoor enthusiasts.
• Badger Balm SPF 30: Found at Whole Foods and online, Badger Balm offers a range of organic and reef-safe sunscreens.
• Raw Elements USA SPF 30: Available at surf shops and online, Raw Elements is a favorite among surfers and divers.
• Blue Lizard Australian Sunscreen Sensitive SPF 30+: Available at most drugstores, this sunscreen is a good option for sensitive skin.

Remember, protecting our skin and protecting our environment are not mutually exclusive. By choosing reef-safe sunscreen, we can enjoy the sun and sand without harming our bodies or devastating our coral reefs. Let’s make the switch to mineral-based sunscreens and help preserve the beauty and health of Miami-Dade County for generations to come. The future of our reefs, and perhaps our own health, depends on it.