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 | Amino Acid Supplement for Relaxation, Serotonin Support, PMS, and Sleep* | 180 Capsules

Pure Encapsulations L-Tryptophan | Amino Acid Supplement for Relaxation, Serotonin Support, PMS, and Sleep* | 180 Capsules

Product ID: 428704243

Details

Age range (description)
Adult
Brand
Pure
Flavour
Unflavored
Item dimensions L x W x H
10.8 x 10.6 x
Item form
Capsule
Item weight
0.18 Kilograms

⏳Supports sleep onset & duration

🌿Free from allergens & artificial additives

💊180 pure capsules

$491.12

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Description

🌙 Elevate your evenings with pure, potent calm — sleep smarter, live brighter!

CLEAN PURE FORMULA - Crafted without gluten, GMOs, artificial colors, or fillers—because what’s left out matters.
MOOD CRAVING CONTROL - L-Tryptophan’s serotonin boost helps ease occasional PMS irritability and curb cravings naturally.
NATURAL RELAXATION SUPPORT - Promotes calm and relaxation, making it your go-to for unwinding after a high-pressure day.
PREMIUM SOURCING TESTING - Only top-tier ingredients, rigorously tested for potency and purity to fuel your wellness journey.
RESTFUL NIGHTS ENERGIZED DAYS - Clinically supported to enhance sleep quality, onset, and duration for your busiest mornings.

Pure Encapsulations L-Tryptophan delivers 180 capsules of a premium, allergen-free amino acid supplement designed to support restful sleep, relaxation, and serotonin production. Backed by clinical research, it helps improve sleep onset and duration, eases occasional PMS symptoms, and controls cravings, all while maintaining a clean, pure formula free from gluten, GMOs, and artificial additives.

Specifications

ASIN	B07H8N948R
Age Range Description	Adult
Best Sellers Rank	#163,224 in Health ( See Top 100 in Health ) #2,349 in Amino Acid Nutritional Supplements #4,466 in Multiple Vitamin-Mineral Combination Supplements
Brand	Pure Encapsulations
Brand Name	Pure Encapsulations
Color	red
Container Type	Bottle
Customer Reviews	4.9 out of 5 stars 44 Reviews
Dosage Form	Capsule
Flavor	Unflavored
Flavour	Unflavored
Item Dimensions	10.8 x 10.6 x 9.3 centimeters
Item Form	Capsule
Item Weight	0.18 Kilograms
Item dimensions L x W x H	10.8 x 10.6 x 9.3 centimeters
Item form	Capsule
Item weight	0.18 Kilograms
Manufacturer	Pure Encapsulations
Manufacturer Part Number	B07H8N948R
Material Features	Food Safe
Number of Items	1
Product Benefits	Sleep Support
Special Ingredients	Amino Acids
Specific Uses For Product	Laboratory
Total Servings Per Container	60
Unit Count	180 Count
Unit count	180 Count

Reviews

A**E

I use every day, helps me a lot

I don’t use as directed, I take 3 in the evening. 3 hours later, I get groggy enough to fall asleep. For me, 3 hours later I burp a lot but after 10 mins or so it’s much easier to sleep. I took advilpm and 4xcedrin pm for decades, and I like that this is a natural remedy.

6.09.2019

O**N

All natural

Good sleep aid

8.05.2019

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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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$491.12

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

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