Best Selenium products by transparent scoring (2026)
Single-ingredient products scored by public rules: dose fit, label transparency, data verification, company transparency, third-party testing. Not a measure of efficacy or safety. No paid placement.
Products ranked: 124 · Reference range: 55 – 400 mcg (source) · Updated 2026-11-01
Reference range: from 100% of the US Daily Value to the upper reference value.
Single-ingredient products only.
Left out of this list: combination products (a single-ingredient list exists) (32)
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 (No data (not scored); the other four parts are rescaled from 90 to 100) — Methodology · Selenium →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SelenoExcell Selenium 200 mcg Swanson · US NIH DSLD |
200 mcg | 100.0 | Breakdown
|
||||||||||||||||
| 2 tie |
Selenium 100 mcg Swanson · US NIH DSLD |
200 mcg | 97.8 | Breakdown
|
||||||||||||||||
| 2 tie |
Selenium 200 GNC · US NIH DSLD |
200 mcg | 97.8 | Breakdown
|
||||||||||||||||
| 2 tie |
Selenium 200 mcg Nature's Bounty · US NIH DSLD |
200 mcg | 97.8 | Breakdown
|
||||||||||||||||
| 2 tie |
Selenium 200 mcg CVS Pharmacy · US NIH DSLD |
200 mcg | 97.8 | Breakdown
|
||||||||||||||||
| 2 tie |
Selenium 200 mcg Vitamin World · US NIH DSLD |
200 mcg | 97.8 | Breakdown
|
||||||||||||||||
| 7 | Selenium 200 mcg Solaray · US NIH DSLD |
200 mcg | 96.7 | Breakdown
|
||||||||||||||||
| 8 | Selenium MegaFood · US NIH DSLD below reference range |
50 mcg | 96.0 | Breakdown
|
||||||||||||||||
| 9 tie |
Selenium (Selenomethionine) Pure Encapsulations · US NIH DSLD |
200 mcg | 94.4 | Breakdown
|
||||||||||||||||
| 9 tie |
Selenium 200 mcg 21st Century · US NIH DSLD |
200 mcg | 94.4 | Breakdown
|
||||||||||||||||
| 9 tie |
Selenium CWS Genestra Brands · US NIH DSLD |
200 mcg | 94.4 | Breakdown
|
||||||||||||||||
| 9 tie |
Selenium Glycinate Bluebonnet · US NIH DSLD |
200 mcg | 94.4 | Breakdown
|
||||||||||||||||
| 9 tie |
Selenium Solution Allergy Research Group · US NIH DSLD |
300 mcg | 94.4 | Breakdown
|
||||||||||||||||
| 14 tie |
Absorbable Selenium 200 mcg Vita Health Products Inc. · Health Canada LNHPD |
200 mcg | 93.3 | Breakdown
|
||||||||||||||||
| 14 tie |
GNC SELENIUM 100MCG TABLET GNC · Malaysia NPRA |
100 mcg | 93.3 | Breakdown
|
||||||||||||||||
| 14 tie |
Now Selenium 100 mcg Yeast Free NOW Health Group, Inc. · Health Canada LNHPD |
100 mcg | 93.3 | Breakdown
|
||||||||||||||||
| 14 tie |
Now Selenium 200 mcg Vcap NOW Health Group, Inc. · Health Canada LNHPD |
200 mcg | 93.3 | Breakdown
|
||||||||||||||||
| 14 tie |
Selenium 200 mcg GFR Pharma Ltd. · Health Canada LNHPD |
200 mcg | 93.3 | Breakdown
|
||||||||||||||||
| 19 tie |
High Selenium Yeast Selenium 100 mcg Sundown Naturals · US NIH DSLD |
100 mcg | 92.2 | Breakdown
|
||||||||||||||||
| 19 tie |
Selenium 100 mcg Country Life · US NIH DSLD |
100 mcg | 92.2 | Breakdown
|
||||||||||||||||
| 19 tie |
Selenium 100 mcg Bluebonnet · US NIH DSLD |
100 mcg | 92.2 | Breakdown
|
||||||||||||||||
| 19 tie |
Selenium 200 mcg Bluebonnet · US NIH DSLD |
200 mcg | 92.2 | Breakdown
|
||||||||||||||||
| 19 tie |
Selenium 200 mcg Nature's Way · US NIH DSLD |
200 mcg | 92.2 | Breakdown
|
||||||||||||||||
| 19 tie |
Selenium 200 mcg Solgar · US NIH DSLD |
200 mcg | 92.2 | Breakdown
|
||||||||||||||||
| 19 tie |
Selenium 200 mcg Sundown Naturals · US NIH DSLD |
200 mcg | 92.2 | Breakdown
|
||||||||||||||||
| 19 tie |
Selenomethionine Thorne Research · US NIH DSLD |
200 mcg | 92.2 | Breakdown
|
||||||||||||||||
| 27 | Selenium Citrate Thorne Research, Inc. · Health Canada LNHPD |
200 mcg | 87.8 | Breakdown
|
||||||||||||||||
| 28 tie |
Aqueous Selenium Biotics Research Corporation · US NIH DSLD |
95 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
High Potency Selenium 200 mcg Nature's Truth · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Ionic Selenium AM Angstrom Minerals · US NIH DSLD |
100 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium Higher Nature · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium Mineralife · US NIH DSLD |
400 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium Triquetra · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium BRI Nutrition · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium Superior Source · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium Natures Craft · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium Ubervita · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium Global Healing Center · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium BioCare · US NIH DSLD |
100 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 100 mcg New Sun · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 100 mcg Biovia · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 100 mcg Village Vitality · US NIH DSLD |
100 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 100 mcg VitaCeutical Labs · US NIH DSLD |
100 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 200 Moss Nutrition · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 200 mcg Nutricost · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 200 mcg Nested Naturals · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 200 mcg Douglas Cooper Co. · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 200 mcg NutraBio · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 200 mcg Seeking Health · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
| 28 tie |
Selenium 200 mcg NuMedica · US NIH DSLD |
200 mcg | 83.3 | Breakdown
|
||||||||||||||||
100 products were scored; the top 50 are listed here. See the rest in the product list.
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.