What makes Thorne supplements high quality?

Thorne produces high-quality supplements through rigorous testing, well-researched ingredient sourcing, and strict manufacturing standards. We avoid unnecessary additives, binders, and fillers that may interfere with nutrient absorption.

How does Thorne test its supplements for quality?

To confirm the purity of our ingredients, the potency of our formulas, and the absence of all contaminants, we carry out a minimum of four rounds of testing on every product we manufacture. 100+ Thorne employees are dedicated to ensuring quality.

Are Thorne supplements clinically tested and safe?

Thorne partners with researchers and conducts clinical trials to support the efficacy of our products. Our team of doctors and medical experts substantiate each ingredient in every formula based on extensive clinical research and medical literature.

Why are Thorne products more expensive than other supplements?

When it comes to the health of our customers, we never settle. Thorne products may be priced higher than some others because of our commitment to quality at every step. We don’t simply meet the standard in dietary supplements — we set the standard.

Where are Thorne supplements made and where are the ingredients sourced from?

Located in South Carolina, Thorne manufactures supplements in the USA using globally sourced ingredients. When it comes to ingredient sourcing, we seek out only the highest-quality ingredients, selecting each one for its purity and effectiveness.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

THORNE - 5-HTP - Contains Vitamin B6 - Serotonin Support for Sleep & Stress Management* - 5-Hydroxytryptophan Supplement - Third-Party Certified - Gluten, Dairy & Soy-Free - 90 Capsules

THORNE - 5-HTP - Contains Vitamin B6 - Serotonin Support for Sleep & Stress Management* - 5-Hydroxytryptophan Supplement - Third-Party Certified - Gluten, Dairy & Soy-Free - 90 Capsules

Product ID: 18492873

Details

Age Range (Description)
Adult
Brand
THORNE
Diet Type
Vegetarian
Flavor
Unflavored
Item Form
Capsule
Item Weight
0.05 Pounds

🌿Gluten, dairy & soy-free

🛌Supports restful sleep

🧠Boosts serotonin for mood & stress

€ 82.37

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

Description

🌙 Elevate your nights, empower your days — the serotonin secret for modern pros!

TRUSTED BY THE PROS - Endorsed by 100+ professional sports teams and the #1 clinical brand recommended by healthcare practitioners
CLEAN PURE FORMULA - Third-party certified, vegetarian, and free from gluten, dairy, and soy for clean supplementation
CRUSH SUGAR CRAVINGS - Formulated to help reduce sugar cravings, empowering healthier lifestyle choices*
STRESS LESS LIVE MORE - Nutritional support designed to help manage daily stress and maintain a balanced mood*
REST EASY PERFORM BETTER - Clinically-backed 5-HTP with Vitamin B6 to enhance serotonin and promote deep, restorative sleep*

THORNE 5-HTP capsules combine serotonin-boosting 5-Hydroxytryptophan with Vitamin B6 to support restful sleep, stress management, and reduced sugar cravings. Trusted by top sports teams and healthcare experts, this third-party certified, vegetarian supplement is free from gluten, dairy, and soy, delivering clean, effective nutritional support in a convenient 90-capsule bottle.

Specifications

ASIN	B00GDXHBS2
Age Range Description	Adult
Best Sellers Rank	#12,323 in Health & Household ( See Top 100 in Health & Household ) #8 in 5-HTP Nutritional Supplements
Brand	THORNE
Brand Name	THORNE
Color	Red
Container Type	Bottle
Customer Reviews	4.5 out of 5 stars 1,027 Reviews
Diet Type	Vegetarian
Dosage Form	Capsule
Flavor	Unflavored
Global Trade Identification Number	00693749503026
Item Dimensions	1.83 x 1.83 x 3.22 inches
Item Form	Capsule
Item Weight	0.05 Pounds
Manufacturer	Thorne Research
Manufacturer Part Number	SA503-R
Material Features	Vegetarian
Material Type Free	Dairy Free, Gluten Free
Number of Items	1
Primary Supplement Type	Hydroxytryptophan
Product Benefits	Sleep Support
Specific Uses For Product	Laboratory
Total Servings Per Container	45
UPC	693749503026
Unit Count	90 Count

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Ayesha M.

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

5 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 82.37

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews