Every summer, millions of plastic sunscreen bottles end up in landfills, recycling bins, or washed into the ocean. Most people don't think twice about it. You grab a bottle off the shelf, use it for the season, and toss it. But if you spend any real time in the water, it's worth thinking about what that bottle actually is and where it ends up.
Plastic Sunscreen Bottles Are Almost Never Recycled
Sunscreen bottles look recyclable. Most have a recycling symbol on the bottom. But the reality is more complicated.
Most curbside recycling programs don't accept them. The combination of residual product, mixed materials (pump mechanisms, caps, tubes), and the type of plastic used means the vast majority go straight to landfill. The recycling symbol doesn't mean it gets recycled. It just means the plastic has a classification number.
Squeeze tubes are even worse. They're almost universally non-recyclable because they can't be cleaned of residue and are made from layered mixed plastics that recycling facilities can't process.
What Happens When They Get in the Ocean
Coastal communities and surfers see this firsthand. Plastic doesn't biodegrade. It photodegrades, breaking down into smaller and smaller fragments called microplastics. Those fragments end up in the water column, in fish, and eventually in us.
Beyond the plastic itself, most conventional sunscreen bottles contain chemical UV filters like oxybenzone and octinoxate. Both have been shown to be harmful to coral reefs at very low concentrations, and both are now banned in Hawaii, the US Virgin Islands, and several other jurisdictions for that reason. When you swim with conventional sunscreen on, a meaningful amount washes off directly into the water.
The Tin Alternative
A tin isn't a perfect solution to every environmental problem. But it's a meaningful one.
Metal tins are infinitely recyclable without degradation in quality. They don't require sorting or special processing. Most curbside programs accept them. And because a tin has no pump mechanism, no mixed materials, and no liner, what you see is what you get.
Our 2oz tin holds the same amount of product as a standard sunscreen bottle. It fits in a wetsuit pocket, a boardshort pocket, or a dry bag. It doesn't leak. When it's empty, it goes in the recycling bin and actually gets recycled.
Four Ingredients Instead of Twenty
The packaging is one part of it. The formula is the other.
Most conventional sunscreens have ingredient lists that run fifteen to twenty items long. Some of those ingredients serve a function. Many exist to improve texture, extend shelf life, or make the product feel more elegant on skin. That means more processing, more packaging, and more waste upstream before the bottle even reaches you.
Seaker is non-nano zinc oxide, beeswax, jojoba oil, and vitamin E. Four ingredients with a clear purpose, in a tin that will outlast the product inside it.
(Seaker Sun Co is a mineral sun balm made in small batches in Laguna Beach, CA. Learn more at seakersunco.com.)