L-Tryptophan
500 mg, 60 capsules Item # 31247
L-Tryptophan
500 mg, 60 capsules Item # 31247
| The essential amino acid L-tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep/wake cycles. L-Tryptophan also supports immune functions because it is the body’s precursor to the kynurenines that regulate immunity. If needed, L-tryptophan converts to niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system. Source Naturals L-Tryptophan is regularly tested to ensure the highest standards of quality. |
First shipment within 1 business day with FREE standard shipping.
Frequently Bought Together
- This Item: L-Tryptophan, 500 mg, 60 capsules
- Skin Care Collection Day Cream, 1.65 oz
Total Price:
Life Extension - Why We Do It?
The Best Supplements Science Can Offer
When putting something in your body, you should be confident that you’re getting the nutritional benefits your body deserves. We've been delivering high-quality, science-backed supplements for more than 40 years.
What Matters to You, Matters to Us
We're committed to empowering you to live a healthier life. Whether it’s finding sustainable partners for our ingredients or funding the latest anti-aging research, we're all about your health & wellness.
Highly Recommended
98% of our customers recommend us to family and friends. We're very proud of that because our loved ones matter to us—and we're willing to bet you feel the same way.
Product Transparency
40 years of research dedicated to bringing you premium, scientifically-validated formulations.
| ||||||||||||
| Dosage and Use | ||||||||||||
|
||||||||||||
| Warnings | ||||||||||||
|
Do not use if either tamper resistant seal is broken or missing. Keep out of the reach of children. Store in a cool, dry place. | ||||||||||||
Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews.
Sleep
Quiz
Sleep
Quiz
Need a little help falling or staying asleep?
