Sunscreen Reviewed Jul 4, 2026

Stream2Sea

A cosmetic chemist's aquatic-tested 19% non-nano zinc, EWG Verified and reef-focused.

Our take

Why We Trust This Brand

This is a best-in-class fit for both axes: a 19% non-nano zinc-only, fragrance-free formula with a rare triple of EWG Verified, Protect Land + Sea, and USDA Biobased certifications, made by a founder who is herself a cosmetic chemist. Ownership is fully independent, woman-owned and veteran-operated with no outside capital found. The only claim we could not confirm was a third-party 'Made SAFE' certification, so we do not list it.

What's inside

Ingredients & Safety

Every Day Active Mineral Sunscreen: zinc oxide 19%, non-nano ('EcoSafe' naturally-coated USP), the sole active with no titanium and no chemical filters. Fragrance-free, with green tea, tulsi, wakame and turmeric extracts as antioxidants. Aquatic-tested against its own 'Reef-Safer' standard.

Certifications

EWG Verified Protect Land + Sea (Reef Safe) USDA Certified Biobased (100%)

We read every line on this label. Nothing here is on our watch or caution list — no synthetic fragrance, no flagged chemicals.

Full Ingredient List

Safe Watch Caution
  • Non-Nano Zinc Oxide 19%
  • Aqua also listed as Aqua, Purified Water
  • Camellia Sinensis (Green Tea) Leaf Extract
  • Ocimum Sanctum (Tulsi) Leaf Extract
  • Undaria Pinnatifida (Wakame) Extract
  • Curcuma Longa (Turmeric) Root Extract
  • Glycerin also listed as Glycerine, Vegetable Glycerin
  • Tocopherol also listed as Vitamin E

Who owns it

Ownership & Independence

Founded in 2015 by cosmetic chemist Autumn Blum and headquartered in Wauchula, FL with its own FDA-registered manufacturing facility. Described as woman-owned and veteran-operated; no funding rounds, private equity, or acquisitions were found.

Where to buy

Key Products

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