BioStacks
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Ingredients (3)
Suntheanine L-Theanine
100%Dose
100 mg
Target
100–250 mg
Form
Premium
GABA
100%Dose
100 mg
Target
100–300 mg
Form
—
Glycine
2%Dose
0.1 g
Target
3–5 g
Form
—
Other Ingredients (7)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
Apple FlavorFlavor
A flavoring formulated to taste of apple
Potassium SorbatePreservative
Natural preservative derived from sorbic acid
Citric AcidAcidulant
Natural acid derived from citrus fruits
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
How to Take It
Best taken in the evening
Used in the evening for relaxation.
With or without food
On the label
As a dietary supplement, take 4 ml (4 full droppers), 1-2 times daily, between meals.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$48.60
Pricier than 88% of 122 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.