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 them unpronounceable, several of them controversial, and a few that researchers are still trying to figure out. Avobenzone. Oxybenzone. Homosalate. Octinoxate.
We looked at that list and thought: why?
The Problem With Most Sunscreens
Modern chemical sunscreens work by absorbing UV rays and converting them to heat. That sounds fine in theory, but the chemicals that do that job–oxybenzone, octinoxate, and others–have raised real questions. Studies have found oxybenzone in human bloodstreams after a single application. Hawaii banned octinoxate and oxybenzone because of the damage they cause to coral reefs.
We're not trying to scare anyone. But when you're slathering something on your skin every day at the beach, in the surf, or on a hike, it's worth asking what's actually in it.
So We Started From Scratch
Seaker Sun Co was built around one question: what's the minimum number of ingredients you need to make something that actually works and that you'd feel good putting on your body?
The answer was four.
Non-nano zinc oxide. Beeswax. Jojoba oil. Vitamin E.
That's it. No fillers. No preservatives. No synthetic fragrances. No chemicals you'd have to Google.
What Each Ingredient Actually Does
Non-nano zinc oxide is the only active ingredient. It sits on top of the skin and physically reflects UVA and UVB rays–no chemical reaction, no absorption into the bloodstream. It's been used safely for decades and is the go-to for sensitive skin and babies for a reason.
Beeswax gives the balm its texture and its staying power. It creates a breathable barrier on the skin that's naturally water-resistant, which matters when you're in the ocean.
Jojoba oil is as close to your skin's natural sebum as you can get from a plant. It absorbs quickly, doesn't clog pores, and keeps the formula from feeling heavy or greasy.
Vitamin E rounds it out–an antioxidant that protects against environmental damage and helps everything work together.
Why a Balm in a Tin?
Plastic sunscreen bottles are almost never recycled. The shape makes them hard to clean, and the mixed materials mean most end up in landfill. A tin is reusable, recyclable, and holds up in a bag, a backpack, or a wetsuit pocket without leaking.
It also just feels different. There's something intentional about reaching into a tin instead of squeezing a bottle. You use what you need and nothing more.
We Don't Claim an SPF Number–Here's Why
Official SPF ratings require lab testing that's expensive and time-consuming. We haven't done that yet. What we will tell you is that zinc oxide is the gold standard in mineral sun protection, and our formulation is built to be part of a sun-safe routine–applied generously, reapplied after swimming, and paired with a hat and shade during peak hours.
We'd rather be honest about what this is than slap a number on it we can't back up.
Simple Isn't a Compromise
There's a tendency to think that more ingredients means a better product. We think the opposite. Every ingredient in Seaker Sun Co is there for a reason. Nothing is there to extend shelf life, improve texture at the expense of performance, or make the formula cheaper to produce.
Four ingredients. A tin. Clean sun protection that you can actually feel good about.
That's the whole idea.