Product Description
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 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 extremely pure and is regularly tested to ensure the highest standards of quality.
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Historical Data
Last 1 days of price history
| Date | Low Price | High Price | Average Price | Vendors |
|---|---|---|---|---|
| May 11, 2026 | $9.58 | $9.58 | $9.58 | 1 |
Price Statistics
Description
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 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 extremely pure and is regularly tested to ensure the highest standards of quality.
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Vendor Comparison (1 stores)
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| Vendor | Price | Stock | Last Updated | Action |
|---|---|---|---|---|
Smallflower Best Price | $9.58 | Out of Stock | 5/11/2026 | View Product → |
