BioStacks
Best for
Ingredients (6)
L-Theanine
100%Dose
100 mg
Target
100–250 mg
Form
—
Vitamin B6
100%Dose
25 mg
Target
25–100 mg
Form
Budget
GABA
100%Dose
750 mg
Target
100–300 mg
Form
—
Hops
100%Dose
150 mg
Target
100–500 mg
Form
—
Skullcap
100%Dose
150 mg
Target
100–1000 mg
Form
—
Other Ingredients (3)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
LeucineFlow Aid
Branched-chain amino acid used as a processing aid
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
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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.