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Cheapest Biotin (as Magnesium Biotinate) on iHerb

Ranked by real cost per 1,000 mcg of Biotin (as Magnesium Biotinate) — cheapest value first.

Prices updated Jul 25, 2026 · 9 products · Prices in USD

The priciest option here costs about 3.2× more per 1,000 mcg of Biotin (as Magnesium Biotinate) than the best-value pick Doctor's Best. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 1,000 mcg
1
Doctor's Best, Hair & Skin Complex, 60 Veggie Caps
Doctor's Best, Hair & Skin Complex, 60 Veggie Caps
Doctor's Best
10,000 mcg3024.990.083View on iHerb →
2
Legendairy Milk, Mane Event™, Hair, Skin, And Nails, 60 Capsules
Legendairy Milk, Mane Event™, Hair, Skin, And Nails, 60 Capsules
Legendairy Milk
10,000 mcg3034.980.117View on iHerb →
3
MaryRuth's, Multivitamin Gummies + Hair Growth, Peach Mango, 60 Gummies
MaryRuth's, Multivitamin Gummies + Hair Growth, Peach Mango, 60 Gummies
MaryRuth's
10,000 mcg3069.950.233View on iHerb →
4
MaryRuth's, Hair Growth Max Liposomal, Almond Cookie, 15.22 fl oz (450 ml)
MaryRuth's, Hair Growth Max Liposomal, Almond Cookie, 15.22 fl oz (450 ml)
MaryRuth's
10,000 mcg3069.950.233View on iHerb →
5
MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Dragon Fruit Melon, 30 fl oz (887 ml)
MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Dragon Fruit Melon, 30 fl oz (887 ml)
MaryRuth's
10,000 mcg3074.950.250View on iHerb →
6
MaryRuth's, Women's Multivitamin + Hair Growth, Peach, 15.22 fl oz (450 ml)
MaryRuth's, Women's Multivitamin + Hair Growth, Peach, 15.22 fl oz (450 ml)
MaryRuth's
10,000 mcg3074.950.250View on iHerb →
7
MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Dragon Fruit Melon, 15.22 fl oz (450 ml)
MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Dragon Fruit Melon, 15.22 fl oz (450 ml)
MaryRuth's
10,000 mcg1539.950.266View on iHerb →
8
MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Peach Mango, 15.22 fl oz (450 ml)
MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Peach Mango, 15.22 fl oz (450 ml)
MaryRuth's
10,000 mcg1539.950.266View on iHerb →
9
MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Peach Mango, 30 fl oz (887 ml)
MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Peach Mango, 30 fl oz (887 ml)
MaryRuth's
10,000 mcg3079.950.267View on iHerb →

How we rank Biotin (as Magnesium Biotinate)

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.