Stream2Sea Sunscreen
SPF 40 Reef Safer Mineral Sunscreen Tin
Mineral sunscreen balm with 20% non-nano zinc oxide in a 2.8 oz tin that Stream2Sea says is 100% aluminum. Labeled broad spectrum SPF 40 and water resistant for 80 minutes.
Good to know: Stream2Sea's SPF 30 lotions ship in sugarcane-resin tubes, which are plastic, so this tin is the one to buy. The full-size tin was marked Back Soon in October 2026, and a 0.35 oz mini tin 2-pack sells for $13.90.
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Why we picked it
Stream2Sea moved its zinc balm into a tin after customers asked for plastic-free sunscreen, and the product page states the tin is 100% aluminum. The filter is 20% non-nano zinc oxide with nine listed ingredients plus an antioxidant blend. The front of the tin reads broad spectrum SPF 40, water resistant for 80 minutes. The brand's SPF 30 lotions still ship in sugarcane-resin tubes, so the tin is the Stream2Sea product to pick if you want to keep plastic out of your beach bag.
What it’s made of
Aluminum tin; zinc oxide balm. Chosen for what it’s made of, not what it’s wrapped in.
- Aluminum
- Infinitely recyclable; refillable formats cut packaging for good.
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