If you’ve ever visited Hawaii, you’ve probably seen signs reminding visitors to use reef-safe sunscreen.
As someone who spends a lot of time outdoors—and in the ocean—I’ve learned how important it is to choose sun protection that’s safe for both our skin and our environment.
Here’s a guide to what makes a sunscreen reef-safe, plus some of my personal favorites that I use and recommend as a beauty professional living in Hawaii.
What Is Reef-Safe Sunscreen?
Reef-safe sunscreens are free of harmful chemicals like oxybenzone and octinoxate, which have been shown to damage coral reefs and marine life.
Instead, they use mineral-based ingredients like:
Zinc oxide Titanium dioxide (non-nano)
These ingredients sit on top of your skin and reflect UV rays, rather than absorbing them.
My Favorite Reef-Safe Sunscreens
1. Kokua Sun Care Hawaiian Natural Zinc Sunscreen SPF 50
Made in Hawaii Reef-safe, non-nano zinc oxide Packed with local ingredients like kukui nut oil, noni, and spirulina Water-resistant & great for beach days
Why I love it: It feels nourishing, blends surprisingly well for a zinc sunscreen, and smells amazing.
2. Sun Bum Mineral SPF 30 Sunscreen Lotion
Sun Bum is a well-known brand in Hawaii—and their mineral line is reef-friendly!
I like this one when I want a lightweight option that’s also gentle on sensitive skin.
Highlights:
Zinc oxide-based (reef-safe mineral formula) SPF 30 broad-spectrum protection Vegan and cruelty-free Moisturizing with coconut oil and shea butter
Why I like it:
It has a light, beachy scent and doesn’t feel too heavy. Great for quick errands or short outdoor outings.
3. Thinksport SPF 50+
This one is my go-to when I want something that’s affordable, effective, and easy to find.
It’s great for everyday use, safe for the whole family, and doesn’t leave a greasy finish.
Highlights:
Non-nano zinc oxide Water-resistant (80 min) No fragrance or harsh chemicals Easy to apply and rub in
Perfect for:
Daily sun protection, beach days, or hiking. It’s simple but super reliable.
How to Use Sunscreen Properly
Even the best sunscreen won’t work if you don’t apply it the right way!
Here’s how I use it:
Apply 15–20 minutes before going outside Use enough! Most adults need a shot-glass amount Reapply every 2 hours or after swimming or sweating Don’t forget your ears, neck, hands, feet and the tops of your feet!
Have you tried any of these sunscreens? Do you have a favorite reef-safe brand?
Let me know in the comments—I’d love to hear your thoughts!
Island Glow Life 
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