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Cheapest Silica (Silicon Dioxide) on iHerb

Ranked by real cost per 10 mg of Silica (Silicon Dioxide) — cheapest value first.

Prices updated Jul 25, 2026 · 11 products · Prices in USD

The priciest option here costs about 113.6× more per 10 mg of Silica (Silicon Dioxide) than the best-value pick Nature's Truth. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 10 mg
1
Nature's Truth, Hair, Skin & Nails with Biotin, Superior Strength, 250 Rapid Release Liquid Softgels
Nature's Truth, Hair, Skin & Nails with Biotin, Superior Strength, 250 Rapid Release Liquid Softgels
Nature's Truth
30 mg8321.920.088View on iHerb →
2
Nature's Truth, Hair, Skin & Nails with Biotin, Superior Strength, 165 Rapid Release Liquid Softgels
Nature's Truth, Hair, Skin & Nails with Biotin, Superior Strength, 165 Rapid Release Liquid Softgels
Nature's Truth
30 mg5516.360.099View on iHerb →
3
Sundance Vitamins, Ultra Hair, Skin & Nails + Biotin, 90 Quick Release Softgels
Sundance Vitamins, Ultra Hair, Skin & Nails + Biotin, 90 Quick Release Softgels
Sundance Vitamins
30 mg3010.200.113View on iHerb →
4
21st Century, Full Fuel 365™, Men's Multivitamin, Max Performance, 120 Tablets
21st Century, Full Fuel 365™, Men's Multivitamin, Max Performance, 120 Tablets
21st Century
10 mcg6019.990.333View on iHerb →
5
ALLMAX, VITASTACK™, Pill Pack, 30 Multi-Packs
ALLMAX, VITASTACK™, Pill Pack, 30 Multi-Packs
ALLMAX
20 mg3034.690.578View on iHerb →
6
Nature's Way, Alive!® Hair, Skin & Nails Premium Gummy, Strawberry, 60 Gummies
Nature's Way, Alive!® Hair, Skin & Nails Premium Gummy, Strawberry, 60 Gummies
Nature's Way
7 mg3018.790.964View on iHerb →
7
Force Factor, Men's 50+ Multivitamin, 60 Tablets
Force Factor, Men's 50+ Multivitamin, 60 Tablets
Force Factor
2 mg6012.991.08View on iHerb →
8
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
2 mcg6014.991.25View on iHerb →
9
The Vitamin Shoppe, Ultimate Man®, Multivitamin & Multimineral, 90 Tablets
The Vitamin Shoppe, Ultimate Man®, Multivitamin & Multimineral, 90 Tablets
The Vitamin Shoppe
4 mg4523.991.33View on iHerb →
10
21st Century, Mega Multi for Women, 90 Tablets
21st Century, Mega Multi for Women, 90 Tablets
21st Century
2 mcg4513.991.55View on iHerb →
11
Maxi Health, Maxi Longevity™, Multi For Women Over 50, 60 Maxicaps
Maxi Health, Maxi Longevity™, Multi For Women Over 50, 60 Maxicaps
Maxi Health
1 mg3029.9910.00View on iHerb →

How we rank Silica (Silicon Dioxide)

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.