How it works.
Three steps. Three ingredients. One purpose — calm, focused energy without the edge.
Tear open the stick
Each stick is pre-measured — 100mg caffeine, 200mg L-theanine, and a full electrolyte blend. No scooping, no guessing. Just tear and go.
Mix with water
Pour into 12–16oz of cold water and stir or shake for a few seconds. It dissolves clean with a light raspberry ginger flavor — no chalky residue, no artificial aftertaste.
Stay composed
Within 20–30 minutes, the caffeine and L-theanine begin working together. You get sustained focus and energy without the jitters, anxiety, or crash that comes from caffeine alone.
Why the 2:1 ratio matters.
Caffeine alone stimulates. L-theanine alone relaxes. Together at a 2:1 ratio — 200mg L-theanine to 100mg caffeine — they produce something neither can achieve alone: calm, sustained focus.
Multiple double-blind, placebo-controlled studies confirm this combination improves attention, reaction time, and working memory while reducing the anxiety and jitteriness that caffeine alone produces.
Deep dive into the ingredientsCommon questions.
When should I take Calm Stack?
Any time you need focused, calm energy — morning, pre-workout, before a big meeting, or during an afternoon slump. Most people take it 20–30 minutes before they need to perform.
Can I take it every day?
Yes. The 100mg caffeine dose is moderate — equivalent to one cup of coffee. Daily use is fine for most people. If you're sensitive to caffeine, start with half a stick.
Does it work without food?
Yes, though taking it with a light meal can reduce any caffeine sensitivity for those who experience it on an empty stomach.
How long does it last?
Most people feel the effects for 4–6 hours. The L-theanine extends and smooths the caffeine curve, so there's no sharp drop-off.
Is it safe to mix with coffee?
You can, but be mindful of total caffeine intake. One stick + one cup of coffee puts you around 200mg — within the safe range for most adults, but on the higher end.