Your skin is dealing with something most runners never track

High UV
Altitude
Wind
Heat
Sweat

SPF before long miles in the sun isn't enough to stop inflammaging.

Long days on exposed ridgelines, high-altitude training, and countless hours on the trail add up on your skin. Even with sunscreen. Every mile outside exposes you to UV radiation and environmental stress that trigger chronic inflammation and oxidative stress beneath the surface of your skin. Without proper recovery, that damage compounds over time, weakening barrier function, accelerating visible aging, and increasing long-term skin damage. It's called inflammaging, and SPF alone was never designed to stop it.

Our Science

Nature's most advanced skin recovery system.

Behind our formulas is the largest collection of marine science data ever mapped to human health, and the foundation of our Sirenas Complex. A proprietary blend of concentrated marine bioactives designed to work at the cellular level to restore UV damage, stop the cycle of inflammaging, and strengthen skin's natural defenses.

Powered by Sirenas Complex®

Stops the cycle of Inflammaging

Neutralizes free radicals and chronic low-level inflammation triggered by daily UV and environmental exposure.
Restores UV damage at the cellular level

Supports DNA repair, promotes healthy cell renewal, and rebuilds collagen and skin texture that sustained outdoor exposure breaks down.
Strengthens your natural skin barrier

Fortifies your skin's natural defense system, preventing the accumulation of damage and promoting optimal long-term skin health.

Our Science

Tested in the Wild

The best athletes in the world use TERNS.

Coco HoPro Surfer

“TERNS makes sure my skin comes back stronger.”
April VokeyAngler

“I use TERNS everyday. Not just to repair sun damage, but as part of my daily routine to keep my skin healthy, hydrated, and looking its best.”
Koa SmithPro Surfer

“TERNS after sun care is insane.”
Cliff KaponoScientist / Pro Surfer

“It’s rad to have science that keeps us in the ocean.”
Conway BowmanAngler

“TERNS MAYDAY is a part of my everyday skin health program.”
Michael DunphyPro Surfer

“I’ve been bringing TERNS on every adventure, it’s been keeping my skin healthy and moisturized. So essential.”
Gordon ClarkRunner

“Undeniably feel smoother, 100% a winner.”
Jake IlardiPro Skater

“Next day I noticed the burn was pretty much gone. Wake up feeling more hydrated, skin’s looking healthy.”
Nora DarrharPro Beach Volleyball

“I have in my bag all day with me. My skin feels so much smoother and hydrated, I love the results.”

Built for skin that lives outside.

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