BioStacks
Natural Factors
Stress-Relax, Suntheanine, L-Theanine, 100 mg, 60 Chewable Tablets
2 Tablets × 1.5/day
Best for
Ingredients (1)
Suntheanine® L-Theanine
100%Dose/day
300 mg
Target
100–250 mg
Form
Premium
Other Ingredients (7)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
XylitolSweetener
A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at moderate doses (>10-20g/day), though supplement amounts are typically small. Extremely toxic to dogs — households with pets should store securely.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Natural Tropical FlavorFlavor
A proprietary natural flavoring blend imparting tropical-fruit taste
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Citric AcidAcidulant
Natural acid derived from citrus fruits
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
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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.