Amino acid/Protein

L-Tryptophan 500 mg

by Life Extension · Capsule

Supplement facts from the label of L-Tryptophan 500 mg by Life Extension: L-Tryptophan 500 mg.

Label of L-Tryptophan 500 mg, Life Extension
Label image: NIH DSLD · full label (PDF)
Serving size1 Vegetarian Capsule(s)
Servings per container90
Most servings a day on the label1
TypeAmino acid/Protein
Barcode737870172291
Label recordDSLD 328524 · entered 2025-04-24

Supplement Facts

IngredientPer serving% DVUpper limit (adults)
L-Tryptophan500 mg——

Upper limits: NIH ODS Fact Sheets for Health Professionals. Compared only where the unit converts and the limit applies to the form on the label.

On the label

For: Adult (18 - 50 Years) · Gluten Free

Claim types: Nutrient · All Other · Structure/Function

All Other Content: Scan for product info

Precautions re: All Other: Read the entire label and follow the directions carefully.

Suggested/Recommended/Usage/Directions: Directions: Take one (1) capsule 2 to 3 times daily on an empty stomach, or as recommended by a healthcare practitioner. Best if taken separately from protein or amino acids.

Precautions re: All Other: Best if taken separately from protein or amino acids.

Precautions re: Pregnant or Nursing or Prescription Medications: Caution: Consult your healthcare provider before using this product if you are taking medication for mood concerns, such as MAOIs or SSRIs.

Precautions re: All Other: Use caution before driving or operating heavy machinery.

This page repeats what the label says and the official upper limits for healthy adults. It is not medical advice: ask a doctor, pharmacist or registered dietitian about your own intake, especially if you are pregnant, take medicines or have a health condition.

Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).