Best Capsules Selenium Supplements of 2026

This Selenium supplement supports normal thyroid function in healthy individuals and reduces oxidative damage caused by toxins, smoking, alcohol use and stress. It also promotes healthy skin, hair, and cognitive function. It is an essential nutrient to help maintain optimal health and wellness, and is free from gluten, eggs, tree nuts, peanuts, dairy, soy, fish, or shellfish. Thorne is a trusted brand, chosen by champions and trusted by 100+ pro teams, and the only supplement manufacturer to collaborate with Mayo Clinic on wellness research and content. It is also a proud partner of 11 U.S. Olympic Teams.

The Bronson Selenium 200 mcg is a yeast-free chelated amino acid complex that provides essential micronutrient selenium for immune system, thyroid and metabolism support. Albion Minerals chelated technology ensures superior absorption, stability, quality and easy digestion. It is laboratory tested Non-GMO, Gluten Free, Soy Free supplement in 250 vegetarian capsules. Bronson Vitamins have been a trusted brand since 1960, recommended by top medical professionals.

Get immune system support, healthy blood flow, and antioxidant support with Pure Encapsulations Selenium Supplement. It helps protect normal cell function, promotes healthy blood flow, and scavenge free radicals. The supplement is made with premium ingredients and is free from wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.

Nutricost Selenium 200mcg supplement comes in a bottle containing 240 vegetarian capsules, with 200mcg of selenium per capsule. It provides 240 servings, with just one capsule per serving. The product is non-GMO, gluten-free, soy-free, and contains vegetarian capsules that are 3rd party tested. The product is manufactured in a GMP compliant, FDA registered facility.

Life Extension Super Selenium Complex is a dietary supplement that contains three forms of selenium and vitamin E. This supplement is designed to promote cellular health and longevity support by helping your body fight against oxidative stress that contributes to the aging process. Selenium may also support healthy thyroid, immune function, brain, and heart health. Made with only the finest raw ingredients with the purity and potency your body deserves, this supplement is non-GMO, gluten-free, and manufactured in the USA.

The NOW NAC 600 mg Selenium supplement offers a powerful dose of N-acetyl cysteine, a stable form of the amino acid cysteine that supports your body's protein structure and helps produce the important antioxidant glutathione. With 25 mcg of added Selenium, this product also assists in creating essential enzymes that keep your body functioning well. Plus, when you choose this 400-capsule bottle, you contribute to a greener planet since the company plants one tree for every 20 bottles sold. This eco-friendly approach makes it easy for you to support both your health and the environment.

Carlyle's Selenium 200mcg Tablets are an essential trace mineral and element supplement, providing strong support for healthy living. With a potent formula of 200 mcg of selenium per tablet and free of gluten, wheat, lactose, soy, artificial flavor, preservatives, and non-GMO, Carlyle's Selenium 200mcg Tablets are rooted in wellness and manufactured with trusted ingredients for superior quality.

Total Selenium is a 100% plant-based selenium supplement brought to you by Triquetra Health. Derived from garlic using an innovative organic farming process, this supplement offers the most nutrient-dense form of selenium available. It contains all four essential organic forms of selenium, including selenomethionine, which allows for broad-spectrum health benefits. With a clinically validated dose of 200 mcg per capsule, Total Selenium provides the recommended amount for optimal health. Additionally, the organic forms of selenium in this supplement are highly bioavailable, meaning they are easily recognized and utilized by the body. Made in the USA in a cGMP and organic certified facility, Total Selenium is also third-party tested for toxins and microbials. This vegan-friendly supplement is GMO-free, soy-free, gluten-free, preservative-free, and additive-free.

Support your immune system and thyroid function with Solaray Yeast Free Selenium 200mcg. Its high potency formula provides absorbable selenium in its superior form selenomethionine. Selenium is essential for the healthy functioning of the thyroid gland and may also support a healthy immune system, antioxidant processes, and cellular health. Solaray is committed to a cleaner planet by using 100% post-consumer resin recycled plastic bottles. This vegan and yeast-free supplement is lab verified for potency and purity and made in the USA.

Global Healing Selenium Supplement with Organic Ingredients is a powerful antioxidant that defends against free radicals to protect normal cell function, maintain cardiovascular health, and support a healthy thyroid and immune system. The organic and vegan capsules are made from certified organic mustard seeds for maximum absorption and are free from gluten, soy, dairy, GMOs, sugar, artificial flavors, synthetic dyes, and toxic fillers. Manufactured in the USA in a cGMP certified facility, the supplement comes with a 30-day guarantee.