L-Tryptophan 500 mg
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 50% of ingredients have research evidence
What the Evidence Says
AI-generated · Qwen 3.6 · methodologyL-tryptophan is an essential amino acid used as a precursor for serotonin and melatonin, while Vitamin B3 supports cellular metabolism. There is moderate research evidence supporting their roles in mood regulation and energy production. However, overall evidence coverage for this specific formulation is limited.
AI-generated summary based on research evidence. Not medical advice.
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Supplement Facts — Evidence Check
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Product Information
Directions for Use
Directions: Take 1 capsule daily, preferably without food, or as directed by a healthcare practitioner.
Warnings & Precautions
Keep out of reach of children.
Do not use if safety seal is damaged or missing.
If pregnant, nursing or on medication, consult with your healthcare practitioner.
Formulation Notes
High potency serotonin enhancer
L-Tryptophan is used by the brain as a precursor to serotonin and melatonin, neurotransmitters that are necessary for normal sleep. Adequate sleep is crucial for healthy immune and nervous system function. In addition, changes in the level of serotonin in the brain can impact mood and satiety.
Kosher Pareve Under the strict supervision of Rabbi SH. Stern & the orthodox union
Non-GMO Gluten free Dairy free Soy free
Vegetarian friendly
Purified L-Tryptophan
High Potency Serotonin Enhancer Mind & spirit
500 mg per serving
Additional Information
You may need additional supplements to support a healthy diet; consult your nutritionist for a formula that is right for you or contact us at 877-ASK-ZAHLER (877-275-9245) or ask@zahlers.com.
Dairy (Kosher) OU (Kosher) This product was manufactured in a GMP certified Facility
Store tightly closed in a cool, dry place.
Made in the USA
Product Details
Research Evidence
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.