10 Best Selenium Antioxidant Supplements of 2025

Tested and Reviewed: Top 10 Selenium Antioxidant 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 selenium antioxidant 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

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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9.5

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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9.2

Bronson

Bronson Selenium 200 mcg Immune & Antioxidant Support Essential Mineral, 250 Vegetarian Tablets

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Main Highlights

High Quality & Great Value: Bronson Basics Selenium provides 200 MCG of Selenium per tablet to support a healthy immune system.* We strive to support your good health and well-being through high quality supplements at the best value.
Immune & Antioxidant Support: Fruits and vegetables are quality sources of selenium, but the amount of the mineral in the food depends on the location and soil conditions of where its grown. Taking a quality Selenium supplement is an easy way to ensure that you receive enough of this important mineral to support your immune system and antioxidant health.*
Superior Quality: Laboratory tested Non-GMO, Gluten-Free and Soy-Free. Bronson products are in-house tested and carefully manufactured by trained professionals in our state-of-the-art facility that is located in Hauppauge, New York.
cGMP Premium Standards: Every product manufactured by Bronson is put through a rigorous process to ensure purity, potency and integrity. Through our very own cGMP Certified New York Facility that complies with the most current regulations, we promise to deliver top-quality supplements that are consistently verified for quality and safety.
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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9.0

Pure Encapsulations

Pure Encapsulations Selenium - 200 mcg - for Healthy Cellular Function, Immune System & Antioxidant Defenses - Mineral Supplement - Vegan & Gluten Free - 180 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 180 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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8.8

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

Solgar

Solgar Yeast-Free Selenium 200 mcg, 250 Tablets - Supports Antioxidant & Immune System Health - Non-GMO, Vegan, Gluten Free, Dairy Free, Kosher - 250 Servings

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Main Highlights

Yeast-free selenium; selenium is an essential trace mineral; this formulation provides yeast-free selenium as l-selenomethionine
Antioxidant health; selenium is a component of the antioxidant enzyme glutathione peroxidase, which helps to fight cell-damaging free-radicals; selenium also helps recycle Vitamin E, which adds additional antioxidant support
Collagen support; zinc cti to healthy skin, nails, and hair; It plays a role in the synthesis of collagen in bone tissue
Gluten, wheat & Dairy Free; Solgar yeast-free selenium is Non-GMO, Vegan, Kosher, and free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, preservatives, and color

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8.3

Vimerson Health

Selenium 200 mcg Capsules – High-Potency Selenium Supplement for Thyroid, Antioxidant & Immune Support – Highly Bioavailable L-Selenomethionine Essential Mineral Supplements – Vegan, 100 Capsules

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Main Highlights

HIGH-POTENCY SELENIUM 200MCG CAPSULES Each vegan capsule provides 200 mcg Selenium as L-Selenomethionine, a highly bioavailable mineral supplement that supports daily wellness and energy metabolism.*
THYROID & ENERGY SUPPORT Essential for thyroid hormone metabolism, this selenium mineral supports healthy energy levels and contributes to overall metabolic balance.*
IMMUNE & ANTIOXIDANT DEFENSE A premium selenium supplement that helps your bodys natural antioxidant defenses and promotes a strong, balanced immune system for year-round protection.*
CELLULAR HEALTH & LONGEVITY Powerful antioxidants supplement that aids normal cell function and helps defend against oxidative stress, supporting overall vitality and wellbeing.*
PREMIUM SUPPLEMENT YOU CAN TRUST Balanced selenium supplements for women and men, made in the USA with globally sourced ingredients in a cGMP-certified facility. Small, easy-to-swallow capsules, Non-GMO, Vegan, Halal Certified, and third-party tested for purity and potency.*
NATURALLY STRONG SMELL & TASTE Pure selenium supplements made with L-Selenomethionine can have a distinct natural aroma and flavor a normal characteristic of this high-potency mineral supplement, not an indication of spoilage or poor quality.*

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8.1

Solgar

Solgar Yeast-Free Selenium 200 mcg 100 Tablets - Supports Antioxidant & Immune System Health - Non-GMO Vegan Gluten Free Dairy Free Kosher - 100 Servings, Unflavoured, Standard Packaging

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Main Highlights

Helps to fight cell-damaging free radicals in the body; It spares vitamin E, which in turn boosts the cell's antioxidant defense system
Synergistic, antioxidant formulation is offered in a convenient, two-piece, vegetarian capsules
Suitable for vegetarians
YEAST-FREE: This formulation provides the body with yeast-free Selenium in the form of L-selenomethionine

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8.1

Pure Encapsulations

Pure Encapsulations Selenium (Citrate) - for Immune System Support & Cellular Health - Antioxidant Supplement - Supports Blood Flow* - Gluten Free & Vegan - 180 Capsules

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Main Highlights

Immunity Supplement: Selenium (Citrate) provides essential minerals like selenium in citrate form for optimal immune and fertility support*
Antioxidant Protection: Selenium minerals act as a beneficial antioxidant for cellular health*
Support Blood Flow: This formula supports healthy blood flow and may help support healthy growth and fertility*
Suggested Use: As a dietary supplement, take 1 selenium capsule daily, with a meal, or as directed by a health professional; formula is gluten free and vegan
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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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.

Show Price

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