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Sleep Supplements
  1. Home
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  3. Vitamins, Minerals & Supplements
  4. Sleep Supplements
  5. Source Naturals L-Tryptophan…
Source Naturals

Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars)

4.0
(52 Ratings)
Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars) - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹2,020₹2,650

You save ₹630 (24%)

24% off the seller list price

Qty
Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars) — Capsule
Capsule
₹2,020
₹2,650
In Stock

Estimated doorstep delivery by 31 Oct - 2 Nov from USA

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USA-Sourced

Support Sleep & Mood at a Great Price

About this item

Source Naturals L-Tryptophan capsules, 500mg per capsule, are designed to support restful sleep and mood regulation. Created in the USA, these capsules are gluten-free and unflavored, ensuring purity and quality. Over 40 years of trust back this product, manufactured in Scotts Valley, CA, under strict cGMP standards established by the US FDA.

Each capsule contains pure L-Tryptophan, an essential amino acid precursor to serotonin and melatonin, aiding relaxation and sleep. Reviewers in humid Indian cities report improved sleep quality and mood stability after consistent use. The capsules are easy to swallow, portable, and suitable for daily use, arriving in 1-2 weeks via ExpressBox with duties included.

Ideal for adults seeking natural sleep support, these capsules are free from yeast, dairy, egg, gluten, soy, and wheat. Perfect for those with dietary sensitivities or looking for a trusted US-imported supplement. Order now for fast, duty-paid delivery in India.

Key Features

  • The essential amino acid L-tryptophan is the precursor of two natural compounds of great importance.*
  • Suggested Use: 1 capsule three times daily, between meals and preferably with fruit juice. To support restful sleep, take an additional 3 capsules before bed.
  • Allergies: Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no preservatives, or artificial color, flavor or fragrance.
  • Over 40 Years of Trust. Source Naturals was created in 1982 by CEO Ira Goldberg to support each individual's potential to enjoy optimal health.
  • Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration (FDA).

Why choose this product

Premium US-Quality Tryptophan

Source Naturals has over four decades of expertise in producing high-quality amino acid supplements. Their L-Tryptophan is manufactured in FDA-compliant facilities in the USA, ensuring purity and potency. This product supports sleep, mood, and relaxation, backed by positive reviews from Indian users who report better sleep quality and mood stability. Imported directly from US retailers, it arrives in 1-2 weeks with duties paid, offering Indian consumers a trusted alternative to local supplements.

Ideal for Adults & Sensitive Diets

Designed for adults seeking natural sleep support, these capsules are free from common allergens like gluten, dairy, and soy. Suitable for vegetarians and those with dietary sensitivities, they are manufactured in cGMP-certified US facilities, ensuring safety and quality. Perfect for daily use, they arrive duty-paid, supporting a healthy sleep cycle and mood regulation without artificial additives.

How to use

  • Take capsules between meals — Consume 1 capsule three times daily with fruit juice. For sleep, take an additional 3 capsules 30 minutes before bed.
  • Maintain consistent schedule — Use nightly for best results. Support relaxation and mood over 2-4 weeks with regular intake.
  • Store properly — Keep in a cool, dry place. Ensure the tamper-evident seal is intact before use.

Example scenarios

Typical situations where Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars) helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

Rajesh, 35, Mumbai, struggles with insomnia due to stressful work nights.

How this product helps

Using Source Naturals L-Tryptophan, he reports better sleep within 2 weeks, with 30 capsules supporting a full month of nightly use, duties paid.

Nutrition Facts

Key Ingredient
L-Tryptophan

How we compare

FeatureSource Naturals L-TryptophanOthers
Active IngredientPure L-Tryptophan, 500mg per capsule, sourced from US suppliersLocal sleep aids often contain mixed amino acids or lower doses
Price per Capsule₹2,020 per capsule₹10-20 per capsule in Indian brands
Manufacturing StandardsManufactured in FDA-registered cGMP facilities in the USAManufactured in India, quality varies
Allergen-FreeContains no yeast, dairy, egg, gluten, soy, wheatMany Indian brands contain fillers or allergens
Delivery & DutiesArrives in 1-2 weeks via ExpressBox, duties paidLocal brands available immediately, but quality varies

Product details

SKUkbd1646
GTIN00021078019831
BrandSource Naturals
Size30 Count (Pack of 1)
FlavorUnflavored
ContainerBottle
Diet TypeGluten-Free

About Source Naturals

Source Naturals has over 40 years of experience in producing high-quality amino acid supplements, trusted worldwide for purity and efficacy.

Compliance & Legal

No medical claims; product is a dietary supplement. Manufactured in FDA-registered US facilities, complies with US and Indian import regulations. No claims of curing or diagnosing.

Customer Reviews

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FAQ, See What Others Asked

How is this supplement authentic vs the version sold in Indian stores?
This product is sourced directly from US retailers like Amazon and Costco, factory-sealed, imported per order, with all duties paid. It arrives in 12-14 days via ExpressBox, ensuring genuine quality and packaging identical to US standards.
Is this supplement safe for daily use?
Yes, Source Naturals L-Tryptophan capsules are designed for daily use by adults. Manufactured in FDA-compliant US facilities, they are free from common allergens and preservatives, supporting sleep and mood health.
What is the best way to take L-Tryptophan for sleep?
Suggested use is 1 capsule three times daily, between meals, with fruit juice. For sleep support, take an additional 3 capsules before bed. Consistent nightly use promotes better sleep quality.
Can I take this supplement if I am vegetarian?
Yes, these capsules are vegetarian, gluten-free, and free from artificial colors, flavors, and preservatives, suitable for vegetarians and those with dietary sensitivities.
How long does it take to see sleep benefits?
Many users report improved sleep quality within the first week of nightly use. Full benefits develop over consistent use for 2-4 weeks.
How do I know this is a genuine US product?
It is imported directly from US retailers, manufactured in FDA-registered facilities, with batch codes and packaging matching US standards. Duties are paid, ensuring authenticity.

Frequently bought together

Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars)

This item:

Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars)

₹2,020

Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars)

This item

Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars)

₹2,020

Total price:

₹6,540

You save ₹1,930 (23%) Extra

3 items selected

3 items

₹6,540

You save ₹1,930 (23%) Extra

Product Comparison

Attributes
Current
Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars)
Source Naturals L-Tryptophan 500mg | Supports Restful Sleep & Mood (70-120 chars)Buy Now
OLLY Sleep Gummies for Adults, 50 Count | Blackberry Zen, 3mg Melatonin, L-Theanine, Gluten Free
OLLY Sleep Gummies for Adults, 50 Count | Blackberry Zen, 3mg Melatonin, L-Theanine, Gluten FreeBuy Now
OLLY Sleep Support Gummy Supplement, 3 mg Melatonin, L-Theanine, 70 Count (210 Gummies Total) | NSF Certified for Restful Sleep
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Spec
Price
₹2,020
₹2,650
₹2,260
₹2,650
₹2,260
₹3,170
₹2,510
₹3,530
₹2,820
₹3,760
₹7,010
₹10,900
₹1,890
₹2,180
Rating
4.00(52)
4.63(8)
4.50(27K+)
4.50(27K+)
4.70(27K+)
4.30(7,052)
4.70(19K+)
Brand NameSource NaturalsOLLYOLLYOLLYNatrolNature's WayNature Made
Item FormCapsuleN/AN/AN/AN/AN/AN/A
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹2,020₹2,650

You Save ₹630

Estimated doorstep delivery by 31 Oct - 2 Nov from USA
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Not delivered in 90 days? Full refund*
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Your Order Journey: From Purchase to Doorstep

You Order
Place your order
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Packed & shipped
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Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you
You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
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Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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vs
₹6,060+ (3× the price)
₹2,020 locked, all-in
Hard to get the original US version in India
Original US version, shipped to your door
Extra pay for Import Duties, GST, and forex fees
One price in INR, no customs charges at delivery
4–12 weeks · No tracking
12-14 days · live tracking
Grey market, no guarantee, no protection, no refund
100% authentic US, India-verified, return available
Lost in transit = ₹0 back
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