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Cheapest Selenium on iHerb

Ranked by real cost per 100 mcg of Selenium — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 14.4× more per 100 mcg of Selenium than the best-value pick Vitamatic. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mcg
1
Vitamatic, Selenium , 200 mcg , 240 Tablets
Vitamatic, Selenium , 200 mcg , 240 Tablets
Vitamatic
200 mcg2409.990.021View on iHerb →
2
Carlson, Selenium, 180 Capsules
Carlson, Selenium, 180 Capsules
Carlson
200 mcg18020.830.058View on iHerb →
3
Carlson, Selenium , 200 mcg, 60 Capsules
Carlson, Selenium , 200 mcg, 60 Capsules
Carlson
200 mcg608.080.067View on iHerb →
4
Vital Nutrients, Selenium, 90 Vegan Capsules (200 mcg per Capsule)
Vital Nutrients, Selenium, 90 Vegan Capsules (200 mcg per Capsule)
Vital Nutrients
200 mcg9018.990.106View on iHerb →
5
Amazing Nutrition, Daily Multivitamin, 250 Tablets
Amazing Nutrition, Daily Multivitamin, 250 Tablets
Amazing Nutrition
55 mcg25014.990.109View on iHerb →
6
Pines International, Green Duo Powder, 10 oz (283.5 g)
Pines International, Green Duo Powder, 10 oz (283.5 g)
Pines International
19 mcg812.000.130View on iHerb →
7
Healths Harmony, Thyroid Support With Iodine, 180 Capsules
Healths Harmony, Thyroid Support With Iodine, 180 Capsules
Healths Harmony
200 mcg9026.970.150View on iHerb →
8
NOW Foods, Sports, Men's Active Sports Multi, 90 Softgels
NOW Foods, Sports, Men's Active Sports Multi, 90 Softgels
NOW Foods
200 mcg309.960.166View on iHerb →
9
Swanson, Multi With Iron, High Potency, 120 Softgels
Swanson, Multi With Iron, High Potency, 120 Softgels
Swanson
200 mcg6020.990.175View on iHerb →
10
One-A-Day, VitaCraves®, Men's Multivitamin/Multimineral Supplement Gummies, 170 Gummies
One-A-Day, VitaCraves®, Men's Multivitamin/Multimineral Supplement Gummies, 170 Gummies
One-A-Day
110 mcg8516.400.175View on iHerb →
11
Healths Harmony, Thyroid Support, 120 Capsules
Healths Harmony, Thyroid Support, 120 Capsules
Healths Harmony
200 mcg6021.970.183View on iHerb →
12
Elan, Organic Brazil Nuts, Raw , 6.5 oz (185 g)
Elan, Organic Brazil Nuts, Raw , 6.5 oz (185 g)
Elan
575 mcg66.410.186View on iHerb →
13
Vibrant Health, Trilogy™, Daily 3-in-1 Multi-Supplement, Vegan, 60 Capsules
Vibrant Health, Trilogy™, Daily 3-in-1 Multi-Supplement, Vegan, 60 Capsules
Vibrant Health
33 mcg302.000.202View on iHerb →
14
California Gold Nutrition, Active Women's Multivitamin with Black Cohosh, Soy Isoflavones, and Cranberry Concentrate, 180 Tablets
California Gold Nutrition, Active Women's Multivitamin with Black Cohosh, Soy Isoflavones, and Cranberry Concentrate, 180 Tablets
California Gold Nutrition
200 mcg6027.540.230View on iHerb →
15
Nature's Craft, Thyroid Support , 120 Capsules
Nature's Craft, Thyroid Support , 120 Capsules
Nature's Craft
200 mcg6027.990.233View on iHerb →
16
NutriBiotic, Essentials, Multi Mineral, 250 Gluten Free Capsules
NutriBiotic, Essentials, Multi Mineral, 250 Gluten Free Capsules
NutriBiotic
50 mcg25029.990.240View on iHerb →
17
Deva, Vegan Multivitamin & Mineral Supplement, Iron-Free, 90 Tablets
Deva, Vegan Multivitamin & Mineral Supplement, Iron-Free, 90 Tablets
Deva
36 mcg907.990.247View on iHerb →
18
21st Century, Full Fuel 365™, Women's Multivitamin, Max Performance, 120 Tablets
21st Century, Full Fuel 365™, Women's Multivitamin, Max Performance, 120 Tablets
21st Century
100 mcg6014.990.250View on iHerb →
19
NOW Foods, ADAM™, Superior Men's Multi, 180 Softgels
NOW Foods, ADAM™, Superior Men's Multi, 180 Softgels
NOW Foods
200 mcg9047.150.262View on iHerb →
20
NOW Foods, ADAM™, Superior Men's Multi, 90 Softgels
NOW Foods, ADAM™, Superior Men's Multi, 90 Softgels
NOW Foods
200 mcg4524.490.272View on iHerb →
21
Source Naturals, Life Minerals™, No Iron, 120 Tablets
Source Naturals, Life Minerals™, No Iron, 120 Tablets
Source Naturals
100 mcg6016.760.279View on iHerb →
22
Healths Harmony, Thyroid Support With Natural Iodine, 60 Capsules
Healths Harmony, Thyroid Support With Natural Iodine, 60 Capsules
Healths Harmony
200 mcg3016.970.283View on iHerb →
23
NOW Foods, EVE™, Superior Women's Multi, 180 Softgels
NOW Foods, EVE™, Superior Women's Multi, 180 Softgels
NOW Foods
200 mcg6034.220.285View on iHerb →
24
One-A-Day, Proactive 65+ For Men & Women, Multivitamin/Multimineral Supplement, 150 Tablets
One-A-Day, Proactive 65+ For Men & Women, Multivitamin/Multimineral Supplement, 150 Tablets
One-A-Day
55 mcg7511.970.290View on iHerb →
25
Nature's Craft, Thyroid Complex , 60 Capsules
Nature's Craft, Thyroid Complex , 60 Capsules
Nature's Craft
200 mcg3017.990.300View on iHerb →

How we rank Selenium

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.