Source Naturals, L-Tryptophan, 500 mg, 60 Capsules106 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.
0.23 lbs (0.1 kg)
- Product Code: SNS-01984
- UPC Code: 021078019848
- Package Quantity: 60 Capsules
- Dimensions: 2.4 x 2.4 x 4 in, 0.15 lbs (0.07 kg)
- Important Note:
Due to Japanese Custom’s regulations, a maximum of three bottles per order can be imported into Japan.
- Volume Discount
This product is already in your Notification List.
Cancel notification request.
This product is now in your Notification List.
This product is already in your Wish List.
View Wish List
This product is now in your Wish List.
Combo Discount: -$2.11
- Dietary Supplement
- Mood, Relaxation, Sleep
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 extremely pure and is regularly tested to ensure the highest standards of quality.
1 capsule three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3 capsules before bed.
Gelatin (capsule), dibasic calcium phosphate, microcrystalline cellulose, silica, and magnesium stearate.
Hypoallergenic: Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives or artificial color, flavor or fragrance.
Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.
Store in a cool, dry place.
Caution: 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.
|Serving Size: 3 Capsules|
|Servings Per Container: 20|
|Amount Per Serving||%DV|
|Iron (naturally occurring)||575 mcg||3%|
|†Daily Value not established.|
iHerb Customer Reviews
I was depressed for about 1 year and had not medical insurance. I went into my local health food store and asked for something. I have been taking L-Tryptophan 3 xs a day for 2 months now and I can think clearer and am not crying all the time. I can get up in the morning and look forward to a day and go to bed without crying myself to sleep. I recommend this to anyone who needs something for depression.
I have suffered from depression my whole life and have been put on several antidepressants and none of them worked for me and had horrible side effects. Since I have started taking L-Tryptophan I have not suffered one day of depression. Unlike before I started taking this product I suffered from severe depression, life wasn't worth living depression. I LOVE THIS PRODUCT!!!!!!