BioStacks
Best for
Ingredients (2)
L-Theanine
100%Dose
200 mg
Target
100–250 mg
Form
—
Green Tea Leaf
50%Dose
100 mg
Target
200–500 mg
Form
—
Other Ingredients
No other ingredients listed
How to Take It
Best taken in the morning
Contains caffeine — keep it to the morning. Take with food; high-dose EGCG on an empty stomach stresses the liver.
With food
Keep it away from iron-rich meals
Space it a couple of hours from Iron
On the label
Take 1 VegCap daily with a meal or glass of water.Store in a cool, dry place.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$34.69
Pricier than 75% of 101 theanine supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.