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The 8 Best selenium supplements of 2025

Are you trying to find selenium supplements among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling selenium supplements on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 23 hours of research and did 66 selenium supplements tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best selenium supplements you can buy today

No. 1
Bronson Selenium 200 mcg – Yeast Free Chelated Amino Acid Complex - Essential Trace Mineral with Superior Absorption, 250 Vegetarian Capsules
  • 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), Bronson’s 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.
No. 2
Thorne Selenium - 200 mcg Selenium Supplement for Antioxidant Support - 60 Capsules
  • 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
  • Free From: Doesn't contain gluten, eggs, tree nuts, peanuts, dairy, soy, fish, or shellfish
  • Trusted: Thorne is chosen by champions and trusted by 100+ pro teams. Thorne is the only supplement manufacturer to collaborate with Mayo Clinic on wellness research and content. Thorne is also a proud partner of 11 U.S. Olympic Teams
SaleNo. 3
NOW Supplements, Selenium (L-Selenomethionine) 100 mcg, Essential Mineral*, 100 Tablets
  • ESSENTIAL MINERAL/100 mcg TABLETS: Selenium is an essential trace mineral that is found naturally in Brazil nuts, organ meats, seafood, and wheat germ.
  • YEAST-FREE: Take 1 tablet 1 to 2 times daily with food.
  • CLASSIFICATIONS/CERTIFICATIONS: Vegan, Soy Free, Non-GMO, Kosher
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.
SaleNo. 4
NOW Foods Selenium 200 mcg VCaps, 180 ct
  • 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.
No. 5
Pure Encapsulations Selenium - 200 mcg - for Healthy Cellular Function, Immune System & Antioxidant Defenses - Mineral Supplement - Vegan & Gluten Free - 180 Capsules
  • 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
No. 6
Nature's Bounty Selenium, Supports Prostate and Immune System Health, 200 mcg, 100 Tablets
  • Support for the prostate and immune system (1)
  • Clinically studied dosage
  • Vegetarian friendly
  • Promotes prostate and immune system health (1)
  • Potent Antioxidant (1)
SaleNo. 7
Solgar Yeast-Free Selenium 200 mcg, 250 Tablets - Supports Antioxidant & Immune System Health - Non-GMO, Vegan, Gluten Free, Dairy Free, Kosher - 250 Servings
  • 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
SaleNo. 8
Life Extension Super Selenium Complex with Vitamin E – Cellular Health & Longevity Support – Gluten-Free, Non-GMO, Vegetarian –100 Capsules(Pack of 1)
  • Found in the diets of the world’s longest-living people – People who live in “Blue Zones” have many things in common; one of them is the amount of selenium in their diets. Selenium is an antioxidant that helps your cells fight against oxidative stress.
  • Heart & brain support – Selenium's ability to promote a healthy inflammatory response contributes to its support for heart and brain health, plus healthy cell division. Selenium also supports a healthy response to immune system challenges.
  • Thyroid maintenance – Selenium plays a vital role in thyroid health by assisting in thyroid hormone conversion of T4 into T3. This helps your body maintain healthy thyroid function.
  • Ingredients matter – We use only the finest raw ingredients with the purity and potency you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one.    
  • Live your healthiest life – We believe the answers to a healthier life are within reach, and that scientific research is the key to getting us there. That’s why so many of our formulas feature specific ingredients and amounts based on scientific studies.
No. 9
Horbäach Selenium 200mcg Supplement | 120 Tablets | Non-GMO and Gluten Free
  • ESSENTIAL MINERAL: Selenium is an essential trace mineral and element, abundant in enriched yeast
  • VEGETARIAN FORMULA: Features 200 mcg of Selenium in convenient tablet form
  • EXPERTLY CRAFTED: Our professional formula is backed by our commitment to purity and potency
  • HORBAACH MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
  • NATURALLY FREE OF: Gluten, Wheat, Milk, Lactose, Soy, Artificial Flavor, Preservatives & Non-GMO
SaleNo. 10
Carlyle Selenium Supplement 200mcg | 270 Tablet Capsules | Essential Trace Mineral | Vegetarian, Non-GMO, Gluten Free
  • ESSENTIAL MINERAL: Selenium is an essential trace mineral and element, most abundant in yeast
  • POTENT FORMULA: Provides strong support with 200 mcg of selenium per tablet!
  • ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
  • CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
  • VEGETARIAN FORMULA: Free of Gluten, Wheat, Lactose, Soy, Artificial Flavor, Preservatives & Non-GMO
SaleNo. 11
Nutricost Selenium 200mcg, 240 Vegetarian Capsules, Non-GMO, Gluten Free L-Selenomethionine
  • 240 Vegetarian Capsules Per Bottle
  • 200mcg of Selenium Per Capsule
  • 240 Servings Per Bottle - 1 Serving: Just 1 Capsule
  • Non-GMO, Gluten Free, Soy Free, Vegetarian Capsules, 3rd Party Tested
  • Manufactured In a GMP Compliant, FDA Registered Facility
No. 12
365 by Whole Foods Market, Selenium 100MCG, 120 Tablets
  • Brought to you by Whole Foods Market. The packaging for this product has a fresh new look. During this transition, you may get the original packaging or the new packaging in your order, but the product and quality is staying exactly the same. Enjoy!
  • Formulated for maximum absorption.
  • No Yeast formula.
  • Powerful antioxidant support.
  • Vegan.
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
SaleNo. 13
Clean Nutraceuticals Selenium 300mcg Zinc 50mg Iodine 500mcg L Tyrosine 500mg Ashwagandha - Thyroid Support Supplement for Women & Men w/Bladderwrack, Turmeric, Kelp, Schisandra - 60 Capsules
  • Advanced 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 Complex & 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 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.
  • A Powerful 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.
  • 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.
No. 14
Bronson Selenium 200 mcg Immune & Antioxidant Support Essential Mineral, 250 Vegetarian Tablets
  • 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 it’s 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.
No. 15
Total Selenium - 200 mcg, Plant-Based Selenium - Full Spectrum, Contains 4 Essential Organic Forms of Selenium Including Selenomethionine - Derived from Garlic - 60 Capsules
  • 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.
No. 16
Global Healing Selenium 200mcg, Selenium Supplement Drops with Organic Ingredients, Antioxidants for Thyroid and Immune Support, Non-GMO & Gluten-Free, for Men & Women - 2 Fl Oz
  • 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.
SaleNo. 17
Now Foods Selenium 200 mcg VCaps, 180 Count (Pack of 2)
  • ESSENTIAL MINERAL/200 mcg VEGGIE CAPSULES: Selenium is an essential trace mineral that is found naturally in Brazil nuts, organ meats, seafood, and wheat germ.
  • YEAST-FREE: Take 1 capsule daily with a meal.
  • CLASSIFICATIONS/CERTIFICATIONS: Vegan, Soy Free, Kosher, Halal, Non-GMO
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.
No. 18
Deal Supplement Zinc 50mg with Selenium + Copper, 240 Capsules, 8 Month Supply, 3 in 1 Mineral Formula, Zinc Picolinate Complex Supplement, Supports Healthy Immune System for Adults and Kids
  • Special Features – 8-month bulk supply of max strength zinc picolinate capsules complexed with selenium and copper. Enjoy 3 essential minerals in their most efficiently absorbed forms to promote antioxidant benefits.
  • Benefits & Use – Take it daily or whenever you start feeling a cold forming to give your body the nutrients it needs to stay protected. This complex may promote ultimate immune defense, skin health, heart function, and circulation support.
  • Dosage & Servings – A powerful one a day formula that offers 240 potent capsules per bottle. Each serving will provide 50mg zinc picolinate, 200mcg selenium citrate, and 2mg copper glycinate.
  • Purpose – A high bioavailable complex that provides support for nearly every human cell.
  • Quality Ensured – Non-GMO ingredients that are 3rd party lab tested and passed. Made in the USA without gluten, dairy, eggs, peanuts, soy, wheat, or preservatives.
SaleNo. 19
Force Factor Selenium Immune Support Supplement, Selenium 200mcg Capsules to Support Immune Defense, Immunity Supplement, Vegan, Non-GMO, 120 Capsules
  • BOOST IMMUNE DEFENSE: Force Factor Selenium Capsules provide essential selenium to support and strengthen your immune system, promoting overall health and wellbeing.
  • STRENGTHEN CELLULAR HEALTH: With a potent 200mcg of selenium per capsule, Force Factor Selenium supplement helps maintain healthy cells and protects against oxidative stress.
  • PROVIDES ANTIOXIDANT SUPPORT: Antioxidants support immunity and help protect against free radicals. These potentially harmful molecules are often caused by poor diet, stress, pollution, exercise and more, and can disrupt your healthy cells.
  • PREMIUM QUALITY & VEGAN FRIENDLY: With no artificial colors, artificial flavors, or gelatin, you can rest assured that you’re choosing a high-quality, better-for-you immune support supplement for your daily health and wellbeing.
  • MADE IN THE USA: Force Factor Selenium 200mcg is made in America in GMP-certified manufacturing facilities to ensure quality and safety. All of our ingredients go through rigorous testing to validate their potency and purity.
No. 20
Selenium - 200 mcg, Selenomethionine Form, 300 Servings - Vegan, Glass Bottle, Yeast Free - Sublingual Liquid Concentrate - Antioxidant, Supports Immunity, Thyroid Health (2 oz.)
  • Selenomethionine Form 200 mcg Serving: The Selenomethionine form of Selenium is one of the main natural food forms of Selenium. It also has the highest absorption rate of all forms of Selenium.*
  • Sublingual Liquid Concentrate: The sublingual liquid form is more effective than capsules. It is immediately absorbed and assimilated into the bloodstream.*
  • Easy to Adjust Dosage Size, Highly Versatile Liquid Drops: The liquid drops make it easy to adjust your dosage size - Each droplet contains 50 mcg of Selenium. The liquid form is also highly versatile to use; drops can be taken under the tongue or added to any meal or beverage.
  • Selenium Health Benefits: Essential for thyroid function *. Supports heart health*, brain function*, immunity*, and prostate health*. It is also a potent antioxidant that reduces oxidative stress and slows aging.*
  • Vegan, 3rd Party Tested, Produced in cGMP Certified Facility: Our Selenium is vegan, soy-free, filler-free, preservative-free, gluten-free. It is 3rd party tested by the most stringent labs and proudly produced in the USA in FDA regulated facilities that are cGMP certified.

How to choose a good selenium supplements

Does the idea of finding a fantastic selenium supplements make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in selenium supplements. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top selenium supplements products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top selenium supplements on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top selenium supplements brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top selenium supplements based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the selenium supplements were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good selenium supplements, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your selenium supplements.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting selenium supplements for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our selenium supplements. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what selenium supplements should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on selenium supplements.