10 Best Organic Selenium Supplements of 2025

Tested and Reviewed: Top 10 Organic Selenium Supplements deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Global Healing Center

Global Healing Center - Selenium 200mcg, Selenium Supplement Drops with Organic Ingredients, Antioxidants for Thyroid and Immune Support, Non-GMO & Gluten-Free, for Men & Women - 2 Fl Oz

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Editor's bottom line:

“This organic selenium supplements is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Cardiovascular Health - Normal cardiovascular health requires adequate selenium. Selenium can benefit heart health by supporting normal circulation. Liquid drops are more potent than selenium 200mcg capsules.
Powerful Antioxidant - Defends against free radicals that can damage cells and protect normal cell functions. The antioxidant properties also help to maintain a healthy heart, and cardiovascular health.
Thyroid & Immune System Support - Like nascent iodine, selenium is important for normal thyroid function by helping balance hormones and protecting against damaging of free radicals - selenio organico para tiroides.
Organic & Vegan - Our Selenium (selenio) is a whole food form extracted from certified organic mustard seeds, allowing for efficient absorption. It is also free of gluten, soy, dairy, GMOs, sugar, artificial flavors, synthetic dyes, & toxic fillers.
Made In The USA - Our Selenium is made in our very own, state-of-the-art cGMP certified facility in Phoenix, Arizona.

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Picked by 397 people today

9.5

Triquetra Health

Total Selenium - 200 mcg, Plant-Based Selenium - Full Spectrum, Contains 4 Essential Organic Forms of Selenium Including Selenomethionine - Derived from Garlic - 60 Capsules

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Main Highlights

100% Plant Based Selenium Derived from Garlic: Using a cutting-edge organic farming process and the most nutrient-dense form of garlic, we are able to provide a 100% plant-based and whole food form of Selenium.
Full-Spectrum Selenium, Contains 4 Organic Forms: Total Selenium provides all 4 organic forms of Selenium, including Selenomethionine; this provides the body the different bioactive forms of Selenium in order to address broad spectrum health needs. Each form has different functions and works along different pathways within the body.
200mcg Selenium Per Dose, Clinically Validated: Total Selenium provides a clinically validated dose of 200 mcg of Selenium per capsule.
Most Bioavailable Selenium: The organic forms of Selenium found in Total Selenium are the most bioavailable forms of Selenium. They are the naturally occurring forms of Selenium commonly found in foods, and they are easily recognized and utilized by the body.
Manufactured in the USA, 3rd Party Test, cGMP, Vegan: Total Selenium is GMO-free, soy-free, gluten-free, preservative-free, additive-free. They are naturally occurring forms of Selenium commonly found in foods and are easily recognized and utilized by the body.

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9.5

Clean Nutraceuticals

Clean Nutra Selenium 300mcg Iodine 500mcg Thyroid Support for Women & Men | L Tyrosine 500mg Ashwagandha Supplement Bladderwrack, Turmeric, Kelp, Schisandra Zinc Pills Capsule Supplements

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Main Highlights

All-In-1 Thyroid Support Selenium Supplement & Potassium Iodide Complex for Women and Men - Our product takes selenium and zinc supplements and combines them with potassium iodine, l-tyrosine supplement, and ashwagandha capsules and the results are amazing. Normal thyroid vitamins and supplements contain selenium 200mcg. However, Clean Nutra has officially created an even more potent all in one thyroid supplement.
The Ultimate Thyroid Supplement & Iodine Supplement You've Been Looking For - Clean Nutra ThyroDefend provides 5 full-dose products in one thyroid support complex containing a full zinc supplement, iodine supplements for thyroid, selenium supplements, tyrosine powder, and ashwagandha supplements in a convenient 2 capsule dosage. Finally, iodine pills, zinc 50 mg and an ashwagandha supplement have been packed into one convenient solution.
Introducing the ThyroDefend Thyroid Supplements Blend - In addition to thyroid support for women and zinc supplements for men, our formula contains bladderwrack, turmeric, kelp extract, schisandra extract, forskolin, cayenne pepper, vitamin b complex, and magnesium. This is a powerful alternative to iodine drops, iodine tablets, nascent iodine, l tyrosine 1000mg capsules, and selenium 200mcg capsules. Not your typical mood support supplement, potassium iodide tablets.
Powerful Energy Supplements for Women & Mood Support Supplement - ThyroDefend is overflowing with potent zinc 50mg capsules and more such as Vitamin A, Vitamin C, Vitamin D3, Copper, Mangonese, and Molybdenum. Clear out the countless zink tablets, ayurveda products, zinc 25mg, and zinc supplements 50mg in your cabinet and replace it with just one inclusive supplement from Clean Nutraceuticals.
An Iodine Pills Thyroid Complex with Vetted and Trusted Ingredients - We pride ourselves in offering a quality supplement that combines the benefits of zinc pills, l tyrosine gummies, ashwagandha pills and more. Our formulas are proudly made in a registered and certified facility. Many products offer only a few ingredients like l-tyrosine powder and zinc 100mg. However, this all-in-one contains much more.

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9.2

Earthier

Organic Selenium 200 mcg with Iodine and Silica All from Certified Organic Whole Foods - Two Month Supply

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Main Highlights

100% Certified Organic Whole-Food extracts from Mustard Seed Extract, Seaweed, and Bamboo Extract to provide standardised dosages of Selenium, Iodine and Silica
Specially designed and harvested from real foods for real results. Earthier do not use any preservatives, excipients, magnesium stearate, silicon dioxide, gluten and unless stated are all VEGAN friendly.

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9.0

THORNE

THORNE - Selenium - 200 mcg Selenium Supplement for Antioxidant Support* - 60 Capsules

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Main Highlights

Thyroid Health: Selenium supports normal thyroid function in healthy individuals and is important for the proper functioning of the thyroid gland*
Antioxidant: Because selenium is an antioxidant it helps reduce oxidative damage in the body caused by toxins, smoking, alcohol use, and stress; Selenium also promotes healthy skin, hair, and cognitive function*
Essential Nutrient: Selenium is an essential nutrient to help maintain optimal health and wellness*
3rd Party Contents Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label
Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)

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8.8

Micro Ingredients

Micro Ingredients Selenium Supplements for Women & Men 200mcg, 500 Softgels with Coconut Oil | Essential Trace Mineral as Selenomethionine | Antioxidant for Energy, Heart, & Immune Support

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Main Highlights

Micro Ingredients offers high-absorption Selenium softgels with 200 mcg as L-Selenomethionine. This bioavailable formula is infused with healthy coconut oil to support efficient nutrient delivery and absorption.
Each pouch contains 500 coconut oil softgels, delivering a potent one-a-day serving size for long-term antioxidant and wellness support.
Selenium helps activate one of the bodys most powerful antioxidants, known as glutathione, supporting daily energy, immune, heart, and overall cellular health.
L-Selenomethionine is an essential trace mineral naturally found in foods and is easily recognized by the body, playing a key role in maintaining vitality and whole-body health over time.
Premium non-GMO supplements. Made without soy, dairy, and gluten. Ingredients must pass a 3rd party lab test to ensure our product is safe, pure, and potent.

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8.6

Pure Encapsulations

Pure Encapsulations Selenium - 200 mcg - for Healthy Cellular Function, Immune System & Antioxidant Defenses - Mineral Supplement - Vegan & Gluten Free - 60 Capsules

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Main Highlights

Immune Support Supplement: Our selenium capsules are designed to support healthy cellular function and fortify your immune system*
Antioxidant & Thyroid Support: Selenium, an essential cofactor for glutathione peroxidases, aids in maintaining antioxidant defenses and supports healthy thyroid hormone production*
Pure Encapsulations Selenium: Each bottle comes packed with 60 selenium capsules, formulated with vegan ingredients
Suggested Use: As a dietary supplement, take 1 selenium capsule daily, with a meal, or as directed by a health professional
Pure Difference: What we leave out matters, too; Pure Encapsulations products are FREE FROM common allergens, artificial or unnecessary ingredients, and GMOs

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8.3

365 by Whole Foods Market

365 by Whole Foods Market, Selenium 100mcg, Vegan, 120 Tablets

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Main Highlights

120 tablets of selenium supplement (100mcg)
Powerful antioxidant support formula
No yeast formula for maximum absorption
Vegan-friendly supplement
Free from artificial additives

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8.1

NOW Foods

NOW Foods Selenium 200 mcg VCaps, 180 ct

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Main Highlights

Country of origin is United States
The package dimension of the product is 2.5"L x 2.5"W x 3.2"H
During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

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8.1

Bronson

Bronson Selenium 200 mcg – Yeast Free Chelated Amino Acid Complex - Essential Trace Mineral with Superior Absorption, 250 Vegetarian Capsules

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Main Highlights

Immune System & Metabolism Support: Selenium naturally supports immune system and prostate function. Selenium may also play a key role in metabolism in both men and women.
Chelated Superior Absorption Selenium: By utilizing the premier manufacturer of chelated minerals (Albion), Bronsons Selenium 200 MCG provides easy absorption, stability and overall quality. Albion Minerals are backed by science and an impressive 150+ patents ranging from manufacturing processes to food applications.
Yeast Free Essential Micronutrient Selenium Amino Acid Complex: Selenium is a natural micronutrient that may play a vital role in many essential body functions.
Superior Quality: Laboratory tested Non-GMO, Gluten Free, Soy Free. All Bronson products are tested in our state-of-the-art cGMP registered facility in New York.
Trusted Since 1960: The pioneers of Bronson Vitamins were a group of pharmacists who witnessed the benefits of vitamins and mineral supplementation firsthand with their patients. Bronson Vitamins have been consistently mentioned by top medical professionals since our inception in 1960.

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Our Best Overall Choice

Best Choice

9.7

Global Healing Center

Global Healing Center - Selenium 200mcg, Selenium Supplement Drops with Organic Ingredients, Antioxidants for Thyroid and Immune Support, Non-GMO & Gluten-Free, for Men & Women - 2 Fl Oz

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Cardiovascular Health - Normal cardiovascular health requires adequate selenium. Selenium can benefit heart health by supporting normal circulation. Liquid drops are more potent than selenium 200mcg capsules.
Powerful Antioxidant - Defends against free radicals that can damage cells and protect normal cell functions. The antioxidant properties also help to maintain a healthy heart, and cardiovascular health.
Thyroid & Immune System Support - Like nascent iodine, selenium is important for normal thyroid function by helping balance hormones and protecting against damaging of free radicals - selenio organico para tiroides.
Organic & Vegan - Our Selenium (selenio) is a whole food form extracted from certified organic mustard seeds, allowing for efficient absorption. It is also free of gluten, soy, dairy, GMOs, sugar, artificial flavors, synthetic dyes, & toxic fillers.
Made In The USA - Our Selenium is made in our very own, state-of-the-art cGMP certified facility in Phoenix, Arizona.

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