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Source Naturals, L-Tryptophan, 500 mg, 60 Tablets17 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.
The Shipping Weight includes the product, protective packaging material and the actual shipping box. In addition, the Shipping Weight may be adjusted for the Dimensional Weight (e.g. length, width & height) of a package. It is important to note that certain types of products (e.g. glass containers, liquids, fragile, refrigerated or ice packed) will often require protective packaging material. As such, these products will reflect a higher Shipping Weight compared to the unprotected product.
0.18 lbs (0.08 kg)
- Product Code: SNS-01979
- UPC Code: 021078019794
- Package Quantity: 60 Tablets
- Dimensions: 1.8 x 1.8 x 3.4 in, 0.15 lbs (0.07 kg)
Combo Discount: -$1.00
- Dietary Supplement
- Mood, Relaxation, Sleep
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 tablet three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3 tablets before bed.
Dibasic calcium phosphate, stearic acid, modified cellulose gum, and colloidal silicon dioxide.
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.
Caution: If you are pregnant, may become pregnant, breastfeeding, or are taking medications such as SSRIs or MAOIs 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 Tablets|
|Servings Per Container: 20|
|Amount Per Serving||%DV|
|Iron (naturally occurring)||570 mcg||3%|
|†Daily Value not established.|
iHerb Customer Reviews
A night's sleep without L-Tryptophan isn't a Good night's sleep. I'm 58 and have been getting a normal night's sleep for about five years now, since I started supplementing with tryptophan. One 500mg tablet when I'm ready to fall asleep is all I need (actually I take about 0.25mg melatonin along with it[and sleep like a baby])
I have used this product along with iodine drops for depression and they are awesome I think anyone who suffers from depression should seriously consider this product.