BioStacks
Dr. Mercola

L-Theanine Plus GABA

2 Capsules · 30 servings · $1.00/serving

iHerbAmazon

Best for

Stress & MoodSleep

Ingredients (2)

Suntheanine® L-Theanine

100%

Dose

200 mg

Target

100–250 mg

Form

Premium

GABA

100%

Dose

100 mg

Target

100–300 mg

Form

—

Other Ingredients (4)

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in 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.

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