The Science Of Reef Safety By Sun Motion

If you’re wondering whether you can wear Sun Motion sunscreen without harming coral reefs, the short answer is: Yes. Our products are ocean-conscious, skin-smart, and grounded in science, not fear.

There’s been growing public concern over sunscreen and coral bleaching, and it’s easy to see why: media headlines often highlight alarming claims, like certain ingredients causing coral stress at "extremely low concentrations." But let’s take a closer look at the science, and what “low” really means.

A Quick Look at the Science

Most studies exposing coral to sunscreen ingredients use concentrations in the ppm (parts per million) to ppb (parts per billion) range. While these numbers seem small, they're much higher than what’s found in real-world ocean conditions.

For example, to reach the lowest “harmful” dose tested for oxybenzone, a full body’s worth of sunscreen would need to wash off into one-third of an Olympic swimming pool. In the open ocean, actual concentrations are usually undetectable or in the parts-per-trillion range, which is a million times more dilute.

While some high-use, enclosed bays have shown higher levels, there's currently no strong evidence that sunscreen use causes coral bleaching on a global scale. Climate change, ocean acidification, and pollution from agriculture and industry are the real drivers.

What Really Causes Coral Bleaching?

It’s worth separating myth from fact. Despite headlines, the overwhelming scientific consensus is that sunscreens are not a major cause of coral bleaching. The primary drivers of coral reef decline include:

• Rising ocean temperatures due to climate change

• Ocean acidification

• Increased solar radiation and UV exposure

• Pollution from agriculture (herbicides, pesticides) and oil spills
  
  

While it's true that some sunscreen chemicals have shown coral toxicity in lab settings, these findings often don't reflect real-world ocean conditions. That said, we believe in playing it safe, for your skin and the sea. That’s why Sun Motion  sunscreen formulas contain no oxybenzone or octinoxate. 

Sun Motion’s Approach: Practical, Balanced, and Planet-Conscious

At Sun Motion, we believe in taking a rational, evidence-based approach to environmental stewardship. Our reef-safe sunscreen formulas:

• Avoid ingredients banned in marine-sensitive areas (like oxybenzone and octinoxate)

• Are water-resistant, highly protective, and skin-friendly

• Are designed with both human health and environmental health in mind
  
  

We don't fearmonger. We formulate with intention, so you can protect your skin in motion, without compromising your values.

The Bottom Line: You can wear Sun Motion sunscreen confidently. The science tells us that sunscreen isn’t the villain it’s sometimes made out to be, and that smart formulation choices, combined with good environmental practices, can help us all protect the places we love to play.

Protect your skin. Respect the ocean. Stay in motion.

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