- Manufactured in
- New Milford, New Jersey
- Storage shelf life
- 999 days Dry
- Retail shelf life
- 999 days Dry
Ingredients
"L-tryptophan 500 mg
other ingredients: Hypromellose capsule, organic rice hull concentrate. "
Product Qualities
- Dairy-Free
- Kosher
- Gluten-Free
- Soy-Free
- Non-GMO
"L-Tryptophan is used by the brain as a precursor to serotonin and melatonin, neurotransmitters that are necessary for normal sleep. In addition to normal sleep, changes in the level of serotonin in the brain can impact mood and satiety. Adequate sleep is crucial for both healthy immune and nervous systems. Zahler's L-Tryptophan is a potent, purified form, which effectively crosses the blood-brain barrier.