What is the source of the dextrose used for this tryptophane? Is any part of it sourced or manufctured outside the US?

There is no dextrin in the Pure Encapsulations L-Tryptophan. The l-tryptophan is sourced from the USA and the pyridoxal 5’ phosphate is sourced from China. As with all raw materials, each batch of ingredients received by Pure Encapsulations is tested upon reception for identity, potency (if applicable) and contaminants, which can include heavy metals, residual solvents, allergens, pesticide residues and others depending on ingredient and level of risk. The raw materials are blended and encapsulated in the USA.

Pure Encapsulations - L-Tryptophan contains 6.7 mg of Vitamin B6 and 1000 mg of TryptoPure per 2 capsules.

is this made from GMO corn?

All Pure Encapsulations ingredients, including those derived from corn, are GMO-free.

Is this made by fermentation?

L-Tryptophan is derived from corn dextrose fermentation. The corn dextrose fermentation process starts with isolating dextrose from corn (a sugar, so does not contain allergenic corn protein), which is then fed to micro-organisms. The micro-organisms produce these nutrients, and the nutrients are then isolated and purified away from the starting materials. While no corn proteins or sugar remain in the final product (and Pure has tested with negative results), they do not routinely test for corn allergens and therefore they would not be able to guarantee its safety for someone with a corn allergy. It is generally well tolerated by individuals who are corn sensitive.

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Pure Encapsulations L-Tryptophan, 180 Capsules

Product ID: 99455416

Details

Age Range (Description)
Adult
Brand
Pure
Flavor
Unflavored
Item Form
Capsule
Item Weight
0.18 kg
Item dimensions L x W x H
4.25 x 4.17 x

🌿Pure, allergen & GMO-free formula

💤Supports sleep onset & duration

🧘‍♂️Promotes relaxation & craving control

VT50513

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Description

🌙 Elevate your nights, empower your days — sleep smarter, live better!

SLEEP LIKE A PRO - Clinically backed L-Tryptophan to enhance sleep quality and duration for those high-performance days ahead.
CALM IN A CAPSULE - Scientifically shown to support relaxation and help manage occasional cravings, keeping your focus sharp.
TRUSTED EXPERTISE - Formulated and tested by nutritional experts ensuring potency and safety you can rely on every night.
SLEEK CONVENIENT - 180 easy-to-swallow capsules in a compact bottle, designed for your busy lifestyle and wellness routine.
CLEAN TRANSPARENT - Crafted with premium ingredients, free from common allergens, GMOs, and artificial additives—because purity matters.

Pure Encapsulations L-Tryptophan offers a premium, allergen-free amino acid supplement designed to support restful sleep, relaxation, and serotonin balance. With 180 capsules per bottle, it’s expertly formulated and rigorously tested to ensure purity and potency, making it an essential addition to the wellness regimen of professionals seeking natural, effective sleep and mood support.

Specifications

ASIN	B07H8N948R
Age Range Description	Adult
Best Sellers Rank	#66,735 in Health & Household ( See Top 100 in Health & Household ) #1,868 in Amino Acid Nutritional Supplements #2,518 in Blended Vitamin & Mineral Supplements
Brand	Pure Encapsulations
Brand Name	Pure Encapsulations
Color	Red
Container Type	Bottle
Customer Reviews	4.4 out of 5 stars 179 Reviews
Dosage Form	Capsule
Flavor	Unflavored
Item Dimensions	4.25 x 4.17 x 3.66 inches
Item Form	Capsule
Item Highlight	Amino Acid Supplement for Relaxation, Serotonin Support, PMS, and Sleep, Supports Sleep Quality, Onset, and Duration
Item Weight	0.18 kg
Item dimensions L x W x H	4.25 x 4.17 x 3.66 inches
Manufacturer	Pure Encapsulations
Manufacturer Part Number	B07H8N948R
Material Features	Food Safe
Number of Items	1
Product Benefits	Sleep Support
Special Ingredients	Amino Acid
Specific Uses For Product	Laboratory
Total Servings Per Container	60
Unit Count	180 Count

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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VT50513

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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