Highest SPF

When maximum protection is your top priority, reach for mineral sunscreens formulated with broad-spectrum, non-nano zinc oxide. While SPF 50 is a widely recognized benchmark, it’s worth knowing that anything above it offers only slightly more UVB protection—and no sunscreen blocks 100% of rays.

At Stream2Sea, our sunscreens are designed for high-performance, outdoor use and enriched with ocean-safer, science-backed ingredients. Though we don’t offer an SPF 50 formula specifically, our mineral-based sunscreens deliver the reliable broad-spectrum defense water lovers need—whether you’re kayaking, snorkeling, or hiking in the midday sun.

Formulated with non-nano zinc oxide and boosted by antioxidant-rich botanicals like green tea, wakame, and aloe, our sunscreens shield your skin while being safer for coral reefs and marine life. They’re water-resistant, biodegradable, and formulated without harmful chemicals like oxybenzone and octinoxate.

Rather than chasing the highest SPF, choose sun protection that truly performs—on your skin and in nature.

High-performance sun care that’s safer for your skin—and the sea.

Highest SPF