Nutriana L-Theanine & Caffeine
The takeaway
Worth a look. L-Theanine has real research behind it (20+ studies reviewed), but Caffeine Anhydrous doesn't have enough studies yet.
Based on the ingredients we could read from this scan. A full label may include more — like added sugars, colorings or other ingredients — than we captured here.
Weighed against 26 published studies · led by L-Theanine
Why this grade
- +1 ingredient with published research
- −Caffeine Anhydrous lacks sufficient research
Active ingredients
tap a row for the researchHow the ingredients work together
Known interactions from published nutrition research — separate from the evidence grade.
L-theanine smooths caffeine's stimulant edge; trials show improved attention with fewer jitters versus caffeine alone.
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This grade is built from the label data we could match for this product, so parts of it — like the full nutrition panel — may not appear here yet. A grade is only as sharp as the label we can actually read, and it gets better every time someone shares a clear photo of the real product. Rescan the ingredients and nutrition facts and we'll sharpen it.
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Product Scan grades ingredients, nutrition and processing level. It is not medical advice; talk to your doctor before changing supplements. Grades update as new data becomes available. How we grade →