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Cheapest Vitamin B1 (as thiamine) on iHerb

Ranked by real cost per 10 mg of Vitamin B1 (as thiamine) — cheapest value first.

Prices updated Jul 25, 2026 · 24 products · Prices in USD

The priciest option here costs about 2,362.2× more per 10 mg of Vitamin B1 (as thiamine) than the best-value pick BodyBio. 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
BodyBio, Vitamin B+, 90 Non-GMO Capsules
BodyBio, Vitamin B+, 90 Non-GMO Capsules
BodyBio
84 mg9035.990.048View on iHerb →
2
BrainMD, PMS Relief+, 60 Vegetarian Capsules
BrainMD, PMS Relief+, 60 Vegetarian Capsules
BrainMD
100 mcg3029.950.100View on iHerb →
3
EVLution Nutrition, Women's Multivitamin, 120 Tablets
EVLution Nutrition, Women's Multivitamin, 120 Tablets
EVLution Nutrition
20 mg6015.290.127View on iHerb →
4
Buried Treasure, Liquid Advantage®, VM100 Daily Multi, Citrus Sunrise, 33 fl oz (976 ml)
Buried Treasure, Liquid Advantage®, VM100 Daily Multi, Citrus Sunrise, 33 fl oz (976 ml)
Buried Treasure
50 mg3238.920.243View on iHerb →
5
RidgeCrest Herbals, SereniZen, Stress Management Support, 60 Caps
RidgeCrest Herbals, SereniZen, Stress Management Support, 60 Caps
RidgeCrest Herbals
25 mg3032.990.440View on iHerb →
6
Ageless Foundation Laboratories, Brain Support Supplement, 60 Capsules
Ageless Foundation Laboratories, Brain Support Supplement, 60 Capsules
Ageless Foundation Laboratories
3 mg3014.071.56View on iHerb →
7
Lactofit, Probiotic, Liver Support, 60 Sticks, (2 g) Each
Lactofit, Probiotic, Liver Support, 60 Sticks, (2 g) Each
Lactofit
1 mg6020.992.92View on iHerb →
8
ALLMAX, Liquid L-Carnitine 1500, Fruit Punch, 16 oz (473 ml)
ALLMAX, Liquid L-Carnitine 1500, Fruit Punch, 16 oz (473 ml)
ALLMAX
2 mg3218.493.85View on iHerb →
9
HAIRtamin, Advanced Formula, 30 Vegan Capsules
HAIRtamin, Advanced Formula, 30 Vegan Capsules
HAIRtamin
3 mg3034.004.53View on iHerb →
10
NATURELO, Whole Food Multivitamin, For Teens, 120 Vegetarian Capsules
NATURELO, Whole Food Multivitamin, For Teens, 120 Vegetarian Capsules
NATURELO
1 mg6044.956.24View on iHerb →
11
Nature's Answer, Women's 100, Multivitamin, 60 Vegetarian Capsules
Nature's Answer, Women's 100, Multivitamin, 60 Vegetarian Capsules
Nature's Answer
1 mg3029.998.33View on iHerb →
12
Nature's Answer, Men's 100, Multivitamin, 60 Vegetarian Capsules
Nature's Answer, Men's 100, Multivitamin, 60 Vegetarian Capsules
Nature's Answer
1 mg3029.998.33View on iHerb →
13
ALR Industries, HumaPro, Blue Raspberry, 23.52 oz (667 g)
ALR Industries, HumaPro, Blue Raspberry, 23.52 oz (667 g)
ALR Industries
1 mg9053.618.51View on iHerb →
14
ALR Industries, HumaPro, Rocket Pop, 23.52 oz (667 g)
ALR Industries, HumaPro, Rocket Pop, 23.52 oz (667 g)
ALR Industries
1 mg9053.618.51View on iHerb →
15
ALR Industries, HumaPro, Passion Fruit, 23.52 oz (667 g)
ALR Industries, HumaPro, Passion Fruit, 23.52 oz (667 g)
ALR Industries
1 mg9053.618.51View on iHerb →
16
ALR Industries, HumaPro, Strawberry-Kiwi, 23.52 oz (667 g)
ALR Industries, HumaPro, Strawberry-Kiwi, 23.52 oz (667 g)
ALR Industries
1 mg9053.618.51View on iHerb →
17
Lactofit, Probiotic, Kids , 60 Sticks, (2 g) Each
Lactofit, Probiotic, Kids , 60 Sticks, (2 g) Each
Lactofit
0 mg6023.9911.11View on iHerb →
18
Sports Research, Organic Greens, Pineapple Coconut, 11.64 oz (330 g)
Sports Research, Organic Greens, Pineapple Coconut, 11.64 oz (330 g)
Sports Research
1 mg3046.9717.40View on iHerb →
19
Sports Research, Organic Greens, Original , 10.58 oz (300 g)
Sports Research, Organic Greens, Original , 10.58 oz (300 g)
Sports Research
1 mg3046.9717.40View on iHerb →
20
Sports Research, Greens Organic, Pineapple Coconut, 7.76 oz (220 g)
Sports Research, Greens Organic, Pineapple Coconut, 7.76 oz (220 g)
Sports Research
1 mg2035.9719.98View on iHerb →
21
Sports Research, Organic Greens, Original, 7.05 oz (200 g)
Sports Research, Organic Greens, Original, 7.05 oz (200 g)
Sports Research
1 mg2035.9719.98View on iHerb →
22
Wilderness Poets, Whole Macadamia Nuts, Unsalted, 8 oz (226 g)
Wilderness Poets, Whole Macadamia Nuts, Unsalted, 8 oz (226 g)
Wilderness Poets
0 mg814.5460.58View on iHerb →
23
Nature's Answer, Brewer's Yeast , 16 oz (454 g)
Nature's Answer, Brewer's Yeast , 16 oz (454 g)
Nature's Answer
0 mg1514.2463.29View on iHerb →
24
Genceutic Naturals, Clean Vegan Plant Head®, GLP-1 Support, Smoothie Mix, Unflavored, 12.5 oz (354.5 g)
Genceutic Naturals, Clean Vegan Plant Head®, GLP-1 Support, Smoothie Mix, Unflavored, 12.5 oz (354.5 g)
Genceutic Naturals
0 mg1033.74112.47View on iHerb →

How we rank Vitamin B1 (as thiamine)

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.