BioStacks
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Ingredients (2)
Suntheanine® L-Theanine
100%Dose
100 mg
Target
100–250 mg
Form
Premium
Vitamin B6
10%Dose
2.5 mg
Target
25–100 mg
Form
Premium
Other Ingredients (8)
Glucose SyrupSweetener
High glycemic load; source typically corn (generally gluten-free)
Medium Chain Triglyceride OilCarrier
Fractionated oils rich in C8/C10 triglycerides used as neutral carrier or anti-sticking agent
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Citric AcidAcidulant
Natural acid derived from citrus fruits
Glyceryl BehenateLubricant
Glyceryl ester of behenic acid used as a tablet lubricant and controlled-release matrix agent
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
How to Take It
Best taken in the evening
The Theanine in it is what pulls this toward the evening. Vitamin B6 is easier on the stomach taken with food.
With food
On the label
Adults chew one (1) chewable tablet daily with or without food
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$23.77
Near the median 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.