Field Notes

Mineral Sunscreen for Sensitive Skin: What Most Formulas Get Wrong
If your skin reacts to sunscreen: redness, stinging, breakouts, or that persistent irritation that lingers after a day outside. The instinct is to blame the sun, or your skin, or both.Usually it's the formula.The Problem Is What's in Most SunscreensMost conventional sunscreens use chemical UV filters to do their job. Oxybenzone, avobenzone, octinoxate, homosalate: these compounds work by absorbing UV radiation and converting it to heat. For that process to work, they need to penetrate the skin.That's where sensitive skin runs into trouble. Chemical filters that absorb into the skin... Read more...
Open Seaker Sun Co mineral sun balm tin on sand with zinc oxide and natural ingredients — safe, non-toxic mineral sunscreen for kids and sensitive skin
Is Mineral Sun Balm Safe for Kids?
Pediatricians recommend mineral sunscreen for children. Here's why zinc oxide is the safest choice for kids' skin, and what ingredients to avoid. Read more...
Two hikers with trekking poles climbing a snowy mountain at sunrise — mineral sunscreen for high-altitude UV protection on long hikes
The Best Sun Balm for Hiking
Hiking exposes you to more UV than most people expect. Here's what holds up on the trail — and why the tin format beats a bottle every time. Read more...
Surfer riding a wave at dusk — reef-safe mineral zinc oxide sunscreen for surfers and water sports
Sunscreen for Surfers: What to Look For and Why Mineral Wins
Surfers get more UV exposure than almost anyone else spending time outside. You're out there for hours. The sun hits you directly from above and bounces back off the water... Read more...
Plastic sunscreen bottles on beach - why Seaker Sun Co chose sustainable recyclable metal tins
The Problem with Plastic Sunscreen Bottles
Plastic sunscreen bottles look recyclable. Most aren't. We look at where they actually end up and why we chose a tin instead. Read more...
Reef-safe mineral sunscreen protecting coral reef - Seaker Sun Co non-toxic SPF for divers and surfers
What Does Reef-Safe Actually Mean?
"Reef-safe" has become one of the most popular phrases in sun care. It's on bottles at every price point, in surf shops and pharmacies alike. It sounds good. It feels... Read more...
Mineral vs chemical sunscreen comparison - why reef-safe mineral zinc oxide wins for ocean safety
Mineral vs. Chemical Sunscreen: What's the Actual Difference?
If you've spent any time in the sun care aisle recently, you've probably noticed the words "mineral" and "chemical" being thrown around a lot. But what do they actually mean–and... Read more...
Seaker Sun Co 4-ingredient mineral sun balm - simple natural reef-safe sunscreen formulation
Why We Made a Sun Balm With Only 4 Ingredients
Walk into any drugstore and flip over a bottle of sunscreen. Go ahead, we'll wait. If you're like most people, you'll find a list of 15 to 25 ingredients–many of... Read more...
Seaker Sun Co natural sun balm ingredients - mineral sunscreen with zinc oxide for simple, natural protection
Understanding Seaker Sun Co.'s Sun Balm: The Power of Simple, Natural Protection
When it comes to protecting your skin from the sun, simplicity is key. At Seaker Sun Co., we believe in using the purest, most effective ingredients to give you the... Read more...