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Nutricost, Energy, analyzed by IngredientMD

Caffeine + L-Theanine

2 ingredients documented, every dose read against the trials. The verdict set below is generated by the engine. Nutricost can't edit it, and neither can we.

2 ingredients documentedRead line by lineLabel on file
Nutricost Caffeine + L-Theanine, front of pack
Front of pack, photograph on file
The verdict
Clean label, clinical dose.
For caffeine-free energy seekers.

The classic synergy stack: caffeine 100mg + L-theanine 100mg in a 1:1 ratio. Both hit minimum effective doses. The research-backed ratio is 2:1 theanine:caffeine (so 200mg theanine would be ideal), but 1:1 is the most popular and still highly effective. Clean energy without jitters. Excellent formula simplicity.

Also earned
Thoughtfully stackedExcellent synergy between ingredients.Provides focused energy without jitters.Simple, transparent formula.

The set is generated, never written by the brand.

The read

Nutricost Caffeine + L-Theanine: the formulation holds up. Lead: Caffeine Anhydrous at 100mg. The classic synergy stack: caffeine 100mg + L-theanine 100mg in a 1:1 ratio. Clinical dose on the primary, and the panel holds together.

To provide clean, focused energy without the typical caffeine jitters or crash.. The product offers a well-known synergistic blend. Both ingredients are dosed adequately for a starting point. However, for optimal effects or for those with higher tolerance, slightly higher doses of both, especially L-Theanine, would be beneficial.

Nutricost Caffeine + L-Theanine, front of packWhat's in this, per 1 capsule
✓ dose matches what trials used

2 of 2 shown, 1 dose at what the trials used

Also on the label (inactive): Rice flour, gelatin capsule, microcrystalline cellulose, magnesium stearate (vegetable source), silica

Caffeine + L-Theanine supplement facts
What we analyzed

This read comes from the product's own supplement facts panel. Every dose was cross-referenced with published clinical trials to see whether it matches what the studies actually used.

2 ingredients read1 at trial doses
The source label →
Capsules arranged in a tray
Behind every ingredient on this label
Read the evidence itself.

Every active in Caffeine + L-Theanine has its own page: doses, forms, interactions, cautions, and the studies behind them.

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