At 200mg per capsule, you're getting the most commonly studied dose of **L-Theanine** for promoting calm without drowsiness. This sits right in the clinical sweet spot (100–250mg) used in trials on relaxation, stress response, and sleep quality — so one capsule daily covers you for all three goals.

**L-Theanine** works by boosting alpha brain waves, which are associated with a relaxed-but-alert mental state. If your main goal is better sleep, the research suggests taking it 30–60 minutes before bed. For daytime calm and focus — especially if you drink coffee — it pairs well with caffeine to smooth out jitteriness while keeping you sharp.

The one thing to know: evidence for theanine is moderate, not ironclad. Most studies are small and short-term. You'll likely notice a subtle calming effect rather than anything dramatic, and individual response varies.