BioStacks
SuperiorLabs

L-Tryptophan

1 Capsule · 120 servings · $0.17/serving

iHerbAmazon

Best for

Sleep

Ingredients (1)

L-Tryptophan

100%

Dose

500 mg

Target

250–1000 mg

Form

—

Other Ingredients (2)

Rice HullsAnti-caking

Ground outer husk of rice grains used as a plant-based flow and anti-caking agent

HypromelloseCapsule

Plant-derived capsule material from cellulose

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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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