SunPure’s bottle screams “100% Reef-Safe” in big blue letters. I took it to the lab.
The real test isn’t the marketing—it’s the particle size of the zinc oxide. Nanoparticles can still harm coral. They don’t advertise that detail.
Mineral lotion, SPF 50. $28 for 3oz. They claim it’s “invisible on all skin tones.” Bold.
Non-Nano Zinc Oxide
The active sunscreen ingredient.
Water-Resistant (80 min)
Holds up through a sweaty workout or swim.
Fragrance-Free
No added scent, just a faint, earthy mineral smell.
Photo: Štefan Štefančík / Unsplash
Zinc oxide and titanium dioxide. The mineral blockers. They sit on top of your skin to deflect UV rays.
The formula has coconut alkanes for slip—a common natural-derived emollient that’s not always reef-studied.
- Zinc Oxide 22%: The main UV blocker.
- Titanium Dioxide 5%: Boosts protection.
- Coconut Alkanes: Makes it spreadable—derived from coconut oil.
- Glycerin: Basic humectant for a hint of hydration.
Photo: Derek Owens / Unsplash
Thick. Like, peanut-butter-on-the-first-scoop thick. You have to warm it between your palms first.
After two weeks, I noticed it never truly “disappeared” on my medium skin. More like a soft, matte veil. The surprise? It layered perfectly under makeup—no pilling.
Photo: Maria Lupan / Unsplash
Zero sunburn. Zero new dark spots. But I had a faint white cast in all my midday selfies. The reef-safe claim checks out ingredient-wise, but “clean” is a fuzzy term.
Photo: Diane Walton / Unsplash
It’s a solid, effective mineral sunscreen. The reef-safe claim is legit by current standards. But “invisible”? That’s the greenwashing part.