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What it does
A combination of 2 label ingredients.
Theanine
Form not confirmedGrade —
May improve sleep quality and responses to short-term stress in adults; evidence remains limited.
Inositol
Form not confirmedGrade —
May improve some metabolic measures in PCOS, but evidence is limited and reproductive benefits remain uncertain.
Ingredients (2)
Other ingredients
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
Lab testing
How to take it
With or without food
On the label
Suggested Usage: Take 1 capsule 1 to 2 times daily as needed, preferably on an empty stomach.
Price check
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What 101 theanine supplements cost
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.
Not medical advice. Consult your healthcare professional.