1 / 7Life Extension Super Selenium Complex, 200 mcg, 100 Capsules
Capsules: Life Extension Super Selenium Complex is a once-daily selenium supplement listing 200 mcg per serving in three selenium forms, alongside vitamin E. The listing describes antioxidant, immune and thyroid support, but these are manufacturer claims rather than verified outcomes.
At a glance
- Combines three forms of selenium for a listed total of 200 mcg, with vitamin E.
- The title specifies one daily and a bottle of 100 capsules.
- Manufacturer-described roles include antioxidant activity, thyroid hormone conversion, and immune system support.
Reference price: $14.00
Price checked: Nov 12, 2026
View offerAhead of Black FridayExplore the selectionOften bought together

Life Extension Zinc Caps, 50 mg, Zinc Citrate, 90 Vegetarian Capsules | Zinc 50 mg as Zinc Citrate Supports the Body's Immune Defenses, Ultra-Absorbable, Vegetarian, Non-GMO & Gluten-Free
$6.75

Life Extension BioActive Complete B-Complex, 60 Vegetarian Capsules | Complete B Complex for Heart, Brain & Nerve Support with Healthy Energy & Metabolism in Vegetarian Capsules
$8.97
Pros and cons
Pros
- Three named selenium forms make the listed formula composition clear.
- Once-daily use and 100 capsules offer a straightforward supply format.
Technical specifications
8 specifications| Brand | Life Extension |
|---|---|
| Product model | 01778 |
| Selenium per serving | 200 mcg |
|---|---|
| Selenium forms and amounts | 50 mcg of L-selenomethionine, 50 mcg of sodium selenite, and 100 mcg of Se-Methyl L-Selenocysteine |
| Suggested frequency in title | 1 Daily |
| Capsule count | 100 Capsules |
| Additional ingredient | vitamin E |
| Dimensions listed | 2 x 2 x 3.75 inches; 2.12 ounces |
|---|
What to know before buying
Listing details to confirm
Health-support statements are manufacturer claims and do not establish a treatment or guaranteed result. Check the dose against your diet and other supplements, and consult a qualified healthcare professional if unsure whether selenium is appropriate for you.
Who is it for?
A good fit for
- Shoppers seeking a capsule-based selenium supplement with a listed 200 mcg total from three forms.
- Buyers who prefer a once-daily supplement and want vitamin E included in the listed formula.
Less suited to
- People seeking a selenium-free supplement or a product with a dose other than the listed 200 mcg.
- Anyone looking for evidence of a specific medical treatment effect from this listing alone.

Customer reviews on Amazon
- 5 stars
77% 77% - 4 stars
13% 13% - 3 stars
6% 6% - 2 stars
1% 1% - 1 star
3% 3%
The supplied evidence contains aggregate ratings but no review-summary text, so it does not support identifying particular customer-reported benefits, complaints, or reasons for ratings. The rating distribution is mostly five-star, with smaller shares across the other star categories. That gives limited context about overall sentiment, but it cannot establish the formula's effectiveness or suitability for an individual.
Frequently asked questions
How much selenium is listed per serving?
The product description lists 200 mcg total from 50 mcg of L-selenomethionine, 50 mcg of sodium selenite, and 100 mcg of Se-Methyl L-Selenocysteine.
How often is it intended to be taken?
The title describes it as 1 Daily. Follow the product label and seek professional guidance if you have questions about whether the supplement suits you.
Does the formula include vitamin E?
Yes. The product description identifies vitamin E as an additional ingredient, but does not give its amount in the supplied details.
What does the listing say selenium supports?
Manufacturer claims describe antioxidant activity, immune support, thyroid hormone conversion, and heart and brain health. These claims do not guarantee an individual outcome.

Alternative options

Dr. Mercola Zinc Plus Selenium, Mineral Blend, 90 Capsules (90 Servings) | Supports Immune, Brain, and Respiratory Health, Contains Zinc Glycinate Chelate and Copper, GMO-Free and Gluten-Free
$19.97

Life Extension Super Vitamin E, Non-Synthetic, 268 mg (400 IU), 90 Softgels | Super Vitamin E, 268 mg (400 IU), Non-Synthetic Supplement Promotes Whole-Body Health, Gluten-Free & Non-GMO
$18.75

Life Extension NAD+ Cell Regenerator and Resveratrol Elite, 30 Capsules | Nicotinamide Riboside, Trans-Resveratrol & Quercetin with Fisetin for Heart Health & Healthy Aging; Vegetarian & Non-GMO
$45.00

Life Extension SAMe, 400 mg, Mood Health, 60 Enteric-Coated Tablets | Mood, Joint & Liver Support, Gluten-Free, Non-GMO & Vegetarian
$28.50

Pharma Nord SelenoPrecise Selenium 100 mcg - High Absorption - 150 Tablets | Thyroid, Immune & Fertility Support • Heart Health Antioxidant • Bioavailable Patented Formula • Documented in Research
$21.95

Life Extension N-Acetyl-L-Cysteine (NAC), 600 mg, 60 Capsules | Supports Immune Response, Respiratory Health & Liver Health with Antioxidant Defense Against Free Radicals, Easy to Absorb
$11.24

Selenium Liquid Drops, 200mcg Liquid Selenium Supplement with Vitamin C & Zinc, Sup...
$18.99

NatureWise Turmeric Curcumin 2250mg Supplement with BioPerine, 180 Capsules | Black Pepper Extract for Advanced Absorption - Standardized 95% Curcuma Longa - Joint & Immune Support - 60-Day Supply
$21.49

Life Extension Citicoline (CDP-Choline), 60 Capsules | Brain Supplement for Memory, Focus, Attention & Brain Energy, Gluten-Free, Non-GMO & Vegetarian
$25.50

Nutricost Selenium 200mcg, 240 Vegetarian Capsules, L-Selenomethionine | Gluten Free, GMO-Free
$13.95

Pure Encapsulations Selenium, 200 mcg | For Healthy Cellular Function, Immune System and Antioxidant Defenses*, Mineral Supplement, Vegan and Gluten-Free
$37.50

Country Life Vitamin E Complex 400 IU with Mixed Tocopherols, 90 Softgels | Natural d-alpha vitamin E with mixed tocopherols provides antioxidant and immune support in a gluten-free once-daily softgel
$32.23























