Doctor's Best, Best L-Tryptophan, 500 mg, 90 Veggie Caps149 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.
0.24 lbs (0.11 kg)
- Product Code: DRB-00126
- UPC Code: 753950001268
- Package Quantity: 90 Veggie Caps
- Dimensions: 2.4 x 2.4 x 4.3 in, 0.2 lbs (0.09 kg)
- Important Note: Doctor's Best uses exclusively the Tryptopure brand of Tryptophan, manufactured by Ajinomoto of 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: -€2.61
- Science-Based Nutrition
- Dietary Supplement
- USP Pharmaceutical Grade
- Featuring Ajinomoto's TryptoPure
- Non-GMO and Gluten Free
- AjiPure Amino Acids
L-tryptophan is an essential amino acid (protein building block) in human nutrition. Essential amino acids are not synthesized by the body and must be obtained in the diet. The L-tryptophan in this product is manufactured and tested for purity according to the Japanese Pharmacopeia (JP) and the United States Pharmacopeia (USP) standards.
Adult Use: Take 1 or 2 capsules daily, or as directed by a health practitioner. For optimum absorption, take separately from protein-containing foods and dietary supplements containing protein or amino acids.
Modified cellulose (vegetarian capsule), cellulose, magnesium stearate (vegetable source), silicon dioxide.
Contains nothing other than listed ingredients
|Serving Size: 1 capsule|
|Servings Per Container: 90 servings|
|Amount per serving||% Daily Value|
|Ajinomoto L-Tryptophan||500 mg||†|
|† Daily Value not established.|
iHerb Customer Reviews
This is the exact pharmaceutical quality product as was available only by prescription after the "tryptophan scare," and MUCH less expensive.
After struggling for years with insomnia, I can't believe how well I sleep when I take this along with Melatonin. Now, I did read that Niacin and B-6 help the body assimilate the tryptophan, so I've been also taking one capsule of "True Calm". However, recently, I found that iHerb also carries this brand of tryptophan with the niacin and B-6 already included, so I am planning to try that.