Swanson Selenium is a daily wellness supplement that gives essential antioxidant backup and helps steady immune function via the naturally absorbed L-selenomethionine form and Swanson's long trusted heritage. Each capsule employs the L-selenomethionine form, a highly absorbable selenium source. This brand has stood by quality for more than fifty years, delivering reliability and clarity you can rely on. Sourced with care and tested for purity, Swanson Selenium fits neatly into everyday wellness routines.

Benefits & Features:

• Antioxidant support comes from glutathione peroxidase within selenium supplements.
• L-selenomethionine is highly absorbed, helping the body use selenium efficiently.
• Regular use supports immune function and thyroid hormone metabolism for everyday balance.
• Designed for daily use, these capsules slot into most routines, offering reliable mineral support without fuss and with Swanson's trusted quality behind every batch worldwide.
• Selenium supplements support essential mineral balance for ongoing wellness.

Swanson Health has built a reputation on quality for over fifty years, and this selenium supplement carries that care in every capsule. The L-selenomethionine form, branded as SeLECT, is chosen for purity and absorption, helping you get the most from each dose. Production follows strict quality controls, with simple ingredients like rice flour and gelatin to keep things clean. A trusted daily addition for those seeking reliable selenium supplements to support antioxidant protection and overall wellness. Designed to slot into a broader wellness routine alongside a vitamin d supplement or probiotics for gut health.

Selenium (from L-Selenomethionine)

• GTIN: 87614012353
• Manufacturer: Swanson
• Size: 200 capsules / 100mcg
• Categories: Best SellersMinerals SupplementsSelenium Supplements & VitaminsSubscribe & Save ProductsSwanson
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

As a dietary supplement, take one capsule per day with food and water. Store in a cool, dry place. Keep out of reach of children. Consult your doctor before use if you are pregnant, nursing, taking medication, or have a medical condition. Do not use if the seal is damaged.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Selenium is a pretty essential trace mineral that helps support normal antioxidant defence and keeps immune function going, and helps with thyroid hormone metabolism [a simple everyday health helper].

This form uses L-selenomethionine, the form known for better bioavailability, with SeLECT, the sourcing method here, used in this product [reliable sourcing].

What Does Selenium Do?

Selenium helps with the activity of antioxidant enzymes, which guard cells from oxidative damage. It also helps keep normal immune health and thyroid hormone processing, contributing to overall metabolic health.

In simple terms, this nutrient helps the body's natural antioxidant system and the broader bodily processes involved in immunity and energy balance.

This product isn't meant to diagnose, treat, or prevent any disease.

Swanson is a dependable partner with a well-established reputation for quality and reliability, built over more than five decades in the vitamins and minerals market. This heritage underpins Swanson Selenium as a brand famed for premium raw materials and steady customer service, making them a natural fit for Welzo’s commitment to sourcing excellence. Their SeLECT®-based L-selenomethionine form is recognised for strong absorption and purity, aligning with our aim to offer potent, well‑characterised ingredients. The brand’s approach stresses quality across the supply chain and a reputation for openness with dependable product performance. This brand was evaluated by our medical team for compliance with our ingredient quality and purity standards. Our medical team also notes Swanson’s well established standing in the industry, reinforcing trust in this partnership.

Swanson Selenium delivers a clear product fit for daily use, offering an antioxidant form that supports immune function and cardiovascular health as described in the brand’s formulation approach, while staying aligned with Welzo’s clinical quality criteria. This alignment helps customers receive a reliable, well‑supported supplement from a brand that embodies strict standards and long‑standing credibility.