Arctic Composure · Dietary Supplement
Look forward to the destination. Feel better about the journey.
Arctic Composure is a capsule‑based dietary supplement made with L‑theanine and heat‑treated L. gasseri CP2305.
30 capsules per pouch
L‑Theanine
31 randomized trials
1,168 participants
L. gasseri CP2305
8+ randomized human trials
Acute + sustained‑use research
The research
Arctic Composure brings together evidence‑based ingredients L‑theanine + L. gasseri CP2305, a Japanese‑developed heat‑treated postbiotic with extensive clinical data, to support calm when you want it most.*
L‑Theanine
One human study found that a single 200 mg dose of L‑theanine reduced tension–anxiety within 60 minutes compared with placebo. A second study found a greater reduction in salivary cortisol at 60 minutes compared with placebo.
L. gasseri CP2305
In a 2026 study, in just one hour a single dose of CP2305 significantly reduced stress and tension–anxiety scores compared with a placebo.
In another study, regularly taking CP2305 led to decreased cortisol and greater stress resilience.
These studies evaluated the individual ingredients—not the finished Arctic Composure formula. Individual results may vary.
Explore the ingredient research →
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
For the anticipation before boarding. For settling into your seat. For the journey between where you are and where you want to be.
Bring your headphones, queue up something good, and make Arctic Composure part of your carry‑on essentials.
Free shipping with subscription
Arctic Composure
L‑theanine + L. gasseri CP2305
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.