Source Naturals, L-Tryptophan, 1.77 oz (50 g)5 Reviews
The length of time for the expiration date or "best used before" date depends on the type of product, as well as the brand.
Perishable items (such as flax oils or certain probiotics) generally have shorter expiration dates. Although our warehouse is fully air-conditioned, these more fragile items are put in cold storage (freezer or refrigeration unit) for maximum freshness.
Our receiving department does its best to verify and then enter the correct expiration dates for all incoming products. However, discrepancies do occur from time to time. This being said, the exceptionally high turnover at iHerb ensures that our inventory is among the freshest in the industry.
0.19 lbs (0.09 kg)
- Product Code: SNS-01998
- UPC Code: 021078019985
- Package Quantity: 1.77 oz (50 g)
- Dimensions: 2.2 x 2.2 x 4 in, 0.15 lbs (0.07 kg)
- Volume Discount
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Combo Discount: -$2.95
- Mood, Relaxation, Sleep
- Dietary Supplement
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.
1/4 teaspoon three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3/4 teaspoon before bed.
Suitable for vegetarians and Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
If you are pregnant, may become pregnant, breastfeeding, 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.
Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.
|Serving Size: 3/4 Teaspoon (approx. 1.5 g)|
|Servings Per Container: 33|
|Amount Per Serving||% DV|
|† Daily Value not established.|
iHerb Customer Reviews
I love having it in powder form without the fillers. Getting the extra tryptophan makes my body flow more normally with the rhythms of the day -- like going to sleep at the right time. It a very effective product for me.
I take a dose of this and a dose of Gaba for an excellent nights sleep. I have given this to habitual insomnacs and they have slept through the night for the first time in years.