L-Tryptophan 100 Grams

(hover to enlarge)


L-Tryptophan 100 Grams

Retail $77.98Regular $40.44$37.13

Subscribe & Save!

Save 5% (details) with delivery every

Save 52% off retail

Usually Ships in 1-2 Business Days


The essential amino acid L-tryptophan helps support relaxation, restful sleep, and feeling better. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response. L-Tryptophan also supports immune functions because it is the body's recursor to the kynurenines that regulate immunity. If needed, L-ryptophan converts to niacin in the body, which supports rculation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system. Source Naturals L-TRYPTOPHAN is extremely pure and is regularly tested to ensure the highest standards of quality.

Serving Size

3/4 teaspoons

Suggested Use

1/4 teaspoon three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3/4 teaspoon before bed.


If you are pregnant, breastfeeding, may become pregnant, or are taking medications such as SSRI's or MAOI's consult your health care professional before using this product. Store in a cool, dry place.

Customers who bought this item also bought

Serrapeptase Source Naturals
Serrapeptase 120 VegiCaps $20.46
Vitamin C Sodium Ascorbate Source Naturals
Vitamin C Sodium Ascorbate 16 Ounces $16.02

Write a Review

Have you tried Source Naturals L-Tryptophan? Share your experience with others; Review this product here!