BioStacks
NOW

L-Tryptophan 500 mg

Capsule · 30 servings

39 / 100Poor

Best for

Score Breakdown

Formulation
45
Safety
87
Final score
39/100

Ingredients (1)

L-Tryptophan1000 mg

Within effective range

Other Ingredients

Fillers, coatings, and additives

3Safe1Caution

Rice FlourFiller

Caution

Ascorbyl PalmitateAntioxidant

Safe

HypromelloseCapsule

Safe

Stearic AcidLubricant

Safe

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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.