thorne: what is the leucine derived from in this product?

Thorne's leucine ingredient is derived from duck feathers (that are gathered off the ground and not taken directly from the ducks).

No, this is not a vegan product. Thorne's Magnesium Thyrocsin contains the amino acid, leucine. Their leucine ingredient is derived from duck feathers (that are gathered off the ground and not taken directly from the ducks).

Why isn’t the expiration date on the product?

Most Thorne bottles show expiration dates, however, some show a manufacturing date. If the product is showing a manufacturing date, it is good for 2 years from the manufacturing date. If you are still concerned, please contact us directly and we will be happy to help.

The label does not specify whether or not the product is vegan. It only specifies that it is gluten free. Neither the Leucine nor the silicon dioxide list source, so they may be a result of animal by product.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

THORNE - Thyroid Health Complex - Thyroid Cofactors for Thyroid Function Support* - Vitamins B12, C & E, Ashwagandha, Iodine, Zinc, Selenium, Copper & L-Tyrosine - Third-Party Certified - 120 Capsules

THORNE - Thyroid Health Complex - Thyroid Cofactors for Thyroid Function Support* - Vitamins B12, C & E, Ashwagandha, Iodine, Zinc, Selenium, Copper & L-Tyrosine - Third-Party Certified - 120 Capsules

Product ID: 3241991

Details

Age Range (Description)
Adult
Brand
THORNE
Flavor
Unflavored
Item Form
Capsule
Item Weight
2.1 Ounces
Item dimensions L x W x H
2.38 x 2.38 x

⚡Boosts energy & mental clarity

🌿Ashwagandha for stress & thyroid support

🧪Third-party tested purity & potency

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

C$4825

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered 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 Nicaragua.

Secure transaction

Description

⚡ Unlock your thyroid’s full potential — because your energy deserves the best!

METABOLISM MASTERY - Supports healthy metabolism to help you stay lean and active
ENERGY FOCUS AMPLIFIER - Feel energized and clear-headed, beating fatigue and brain fog daily
THYROID POWERHOUSE BLEND - Botanical Ashwagandha + Iodine + L-Tyrosine fuel optimal thyroid hormone balance*
CLEAN CONSCIOUS FORMULA - Vegetarian, allergen-free, and free from gluten, barley, wheat, rye & eggs
CLINICALLY TRUSTED QUALITY - Third-party certified for purity, trusted by 100+ pro sports teams & healthcare pros

THORNE Thyroid Health Complex is a premium, third-party certified supplement combining essential vitamins, minerals, and botanical cofactors like Ashwagandha, Iodine, and L-Tyrosine to support optimal thyroid function, boost energy, and promote a healthy metabolism. Trusted by healthcare professionals and elite athletes alike, this clean, vegetarian formula is designed to help you overcome fatigue and mental fog with 120 capsules per bottle.

Specifications

ASIN	B004W9NGJM
Age Range Description	Adult
Allergen Information	Barley Free, Egg Free, Gluten Free, Rye Free, Wheat Free
Best Sellers Rank	#9,461 in Health & Household ( See Top 100 in Health & Household ) #4 in Thyroid Extract Nutritional Supplements #928 in Diet & Sports Nutrition
Brand	THORNE
Brand Name	THORNE
Container Type	Bottle
Customer Reviews	4.6 out of 5 stars 1,097 Reviews
Dosage Form	Capsule
Flavor	Unflavored
Item Dimensions	2.38 x 2.38 x 4.23 inches
Item Form	Capsule
Item Weight	2.1 Ounces
Item dimensions L x W x H	2.38 x 2.38 x 4.23 inches
Manufacturer	Thorne Research
Manufacturer Part Number	SF784
Material Features	Vegetarian
Model Name	e Thyrocsin - Thyroid Cofactors for Thyroid Function Support - 120 Capsules
Model Number	693749784012
Number of Items	1
Product Benefits	Metabolism Management
Total Servings Per Container	60
UPC	885330839090 693749784012
Unit Count	120 Count

Reviews

P**Y

7.12.2025

A**.

16.01.2026

M**E

12.04.2026

K**E

12.03.2026

K**.

25.07.2024

C**E

10.04.2026

L**S

24.04.2026

N**R

3.03.2026

K**A

3.03.2026

M**L

6.08.2025

M**I

4.12.2025

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

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Ravi S.

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

2 months ago

View all Trustpilot reviews

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

C$4825

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered 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 Nicaragua.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

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

3 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews