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.

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

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Serene Supplement, 200 mcg, Mineral Supplement, 60 Capsules, Set of 1 [Total 60 Capsules/60 Day Supply]

Product ID: 725796299

Details

Brand
THORNE
Diet Type
Gluten Free
Flavor
Unflavored
Item Form
Capsule
Item Weight
18 g
Material Type Free
No artificial

🧬200 mcg pure selenium per capsule

🗓️60-day supply, 1 capsule daily

🇺🇸Made in USA, trusted by pros

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C$2997

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Elevate your thyroid game with pure, pro-level selenium! 🧬

BEAUTY BOOST - Promotes healthy skin and hair from within—glow that gets noticed
EASY DAILY RITUAL - Small, tasteless capsules designed for effortless integration into your routine
PRO GRADE QUALITY - Partnered with Mayo Clinic & trusted by 100+ pro teams for elite reliability
THYROID POWERHOUSE - Supports optimal thyroid function for balanced energy and metabolism
CLEAN PURE FORMULA - No gluten, soy, dairy, or major allergens—just pure wellness

Thorne Serene Supplement delivers 200 mcg of high-quality selenium per capsule in a clean, allergen-free formula. Designed for thyroid support and enhanced skin and hair health, this 60-capsule pack offers a convenient 60-day supply. Proudly made in the USA, it’s trusted by professional sports teams and developed in partnership with the Mayo Clinic, ensuring premium quality and efficacy.

Specifications

ASIN	B00B5N9IDQ
ASIN	B00B5N9IDQ
Age Range Description	Adult
Amazon Bestseller	#63,811 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #2 in Selenium Mineral Supplements
Brand Name	THORNE
Country of Origin	USA
Country of Publication	USA
Customer Reviews	4.7 4.7 out of 5 stars (4,120)
Diet Type	Gluten Free
Flavor	Unflavored
Is Discontinued By Manufacturer	No
Item Form	Capsule
Item Weight	18 g
Item model number	M225-R
Manufacturer	Thorne Research
Manufacturer	Thorne Research
Manufacturer Part Number	M225
Material Type Free	No artificial fragrance, soy-free, gluten-free, and dairy-free
Model Number	M225-R
Number of Items	1
Primary Supplement Type	Selenium
Product Benefits	Liver & Detox Thyroid
Product Dimensions	4.32 x 4.32 x 7.54 cm; 18 g
UPC	693749225010
Unit Count	60.00 粒

Reviews

D**D

My doctor suggested I add selenium to my supplement regime for my thyroid issue. I love these They are very small and easy to swallow and do not have any after taste as some of the other brands I have tried. I have repurchase a few times. They seem to work for me as my numbers are within normal range again.

24.03.2026

A**R

Good quality

5.01.2026

C**N

Entregado en plazo

5.09.2025

A**Z

I really trust this company

3.03.2026

C**N

Good quality

2.10.2025

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

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Abdullah B.

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

3 weeks ago

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