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Cheapest Bacillus subtilis on iHerb

Ranked by real cost per 100 mg of Bacillus subtilis — cheapest value first.

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

The priciest option here costs about 777.5× more per 100 mg of Bacillus subtilis 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 mg
1
Vitamatic, Bacillus Subtilis, 3.5 oz (100 g)
Vitamatic, Bacillus Subtilis, 3.5 oz (100 g)
Vitamatic
1,000 mg10039.990.040View on iHerb →
2
Dr. Mercola, Organic Complete Probiotics Gummies, Natural Cherry, 30 Gummies (50 mg (5 Billion CFU) per Gummy)
Dr. Mercola, Organic Complete Probiotics Gummies, Natural Cherry, 30 Gummies (50 mg (5 Billion CFU) per Gummy)
Dr. Mercola
50 mg3021.991.47View on iHerb →
3
Vitamatic, Bacillus Subtilis, 60 DRcaps® Hypromellose Capsules
Vitamatic, Bacillus Subtilis, 60 DRcaps® Hypromellose Capsules
Vitamatic
10 Billion6014.992.50View on iHerb →
4
Metagenics, UltraFlora® 3in1 Daily Probiotic, Berry, 60 Gummies
Metagenics, UltraFlora® 3in1 Daily Probiotic, Berry, 60 Gummies
Metagenics
35 mg3029.952.85View on iHerb →
5
Dr. Mercola, Biothin®, Metabolic Pre+ Post + Probiotics, Unflavored, 5 Billion CFU, 30 On-The-Go Packets, 0.19 oz (5.6 g) Each
Dr. Mercola, Biothin®, Metabolic Pre+ Post + Probiotics, Unflavored, 5 Billion CFU, 30 On-The-Go Packets, 0.19 oz (5.6 g) Each
Dr. Mercola
50 mg3043.992.93View on iHerb →
6
Garden of Life, Sport, Creatine Monohydrate + Probiotics, Unflavored, 12.27 oz (348 g)
Garden of Life, Sport, Creatine Monohydrate + Probiotics, Unflavored, 12.27 oz (348 g)
Garden of Life
10 mg6030.745.12View on iHerb →
7
Dr. Mercola, Organic Complete Probiotics Gummies, For Kids, Natural Cherry, 30 Gummies (10 mg (1 Billion CFU) per Gummy)
Dr. Mercola, Organic Complete Probiotics Gummies, For Kids, Natural Cherry, 30 Gummies (10 mg (1 Billion CFU) per Gummy)
Dr. Mercola
10 mg3016.505.50View on iHerb →
8
MaryRuth's, Probiotic Gummies, Strawberry, 60 Gummies (2.5 Billion CFU per Gummy)
MaryRuth's, Probiotic Gummies, Strawberry, 60 Gummies (2.5 Billion CFU per Gummy)
MaryRuth's
17 mg3029.955.99View on iHerb →
9
MaryRuth's, Organic Kids Probiotic Gummies, Strawberry, 60 Gummies
MaryRuth's, Organic Kids Probiotic Gummies, Strawberry, 60 Gummies
MaryRuth's
8 mg6029.955.99View on iHerb →
10
Deva, 3-in-1 Vegan Probiotic, 5 Billion CFU, 90 Vegan Caps
Deva, 3-in-1 Vegan Probiotic, 5 Billion CFU, 90 Vegan Caps
Deva
2 Billion19023.996.31View on iHerb →
11
Metagenics, UltraFlora®, Probiotic + Multivitamin, 30 Capsules
Metagenics, UltraFlora®, Probiotic + Multivitamin, 30 Capsules
Metagenics
15 mg3029.956.66View on iHerb →
12
Amazing Grass, Greens Blend Superfood, Berry, 1.76 lb (800 g)
Amazing Grass, Greens Blend Superfood, Berry, 1.76 lb (800 g)
Amazing Grass
10 mg10066.686.67View on iHerb →
13
Amazing Grass, Greens Blend, Superfood, 1.76 lb (800 g)
Amazing Grass, Greens Blend, Superfood, 1.76 lb (800 g)
Amazing Grass
10 mg10066.686.67View on iHerb →
14
Amazing Grass, Greens Blend, Digest, Pineapple Guava, 7.4 oz (210 g)
Amazing Grass, Greens Blend, Digest, Pineapple Guava, 7.4 oz (210 g)
Amazing Grass
10 mg3021.377.12View on iHerb →
15
Garden of Life, Vitamin D3 & Zinc, 30 Small Tabs
Garden of Life, Vitamin D3 & Zinc, 30 Small Tabs
Garden of Life
5 mg3013.298.86View on iHerb →
16
Amazing Grass, Greens Blend Superfood, 8.5 oz (240 g)
Amazing Grass, Greens Blend Superfood, 8.5 oz (240 g)
Amazing Grass
10 mg3026.718.90View on iHerb →
17
Amazing Grass, Greens Blend, Mood, Passionfruit Citrus, 7.4 oz (210 g)
Amazing Grass, Greens Blend, Mood, Passionfruit Citrus, 7.4 oz (210 g)
Amazing Grass
10 mg3026.718.90View on iHerb →
18
Garden of Life, Dr. Formulated, Quercetin Recovery, 30 Vegan Tablets
Garden of Life, Dr. Formulated, Quercetin Recovery, 30 Vegan Tablets
Garden of Life
5 mg3014.559.70View on iHerb →
19
Garden of Life, Dr. Formulated, Quercetin Immune, 500 mg, 30 Vegetarian Tablets
Garden of Life, Dr. Formulated, Quercetin Immune, 500 mg, 30 Vegetarian Tablets
Garden of Life
5 mg3018.1912.13View on iHerb →
20
Amazing Grass, Greens Blend, Mood, Passionfruit Citrus, 15 Packets 0.25 oz (7 g) Each
Amazing Grass, Greens Blend, Mood, Passionfruit Citrus, 15 Packets 0.25 oz (7 g) Each
Amazing Grass
10 mg1521.3014.20View on iHerb →
21
Garden of Life, Dr. Formulated, Quercetin Drop Uric Acid, 500 mg, 60 Vegan Tablets
Garden of Life, Dr. Formulated, Quercetin Drop Uric Acid, 500 mg, 60 Vegan Tablets
Garden of Life
5 mg3022.3914.93View on iHerb →
22
Garden of Life, Wild Caught & Grass Fed Collagen, Hyaluronic Acid, Unflavored, 9.52 oz (270 g)
Garden of Life, Wild Caught & Grass Fed Collagen, Hyaluronic Acid, Unflavored, 9.52 oz (270 g)
Garden of Life
10 mg1222.3918.66View on iHerb →
23
Garden of Life, Wild Caught & Grass Fed Collagen, Multi-Sourced, Unflavored, 9.52 oz (270 g)
Garden of Life, Wild Caught & Grass Fed Collagen, Multi-Sourced, Unflavored, 9.52 oz (270 g)
Garden of Life
10 mg1222.3918.66View on iHerb →
24
SmartyPants, Digestive, Probiotic & Prebiotic Gummies, Grape, 60 Gummies
SmartyPants, Digestive, Probiotic & Prebiotic Gummies, Grape, 60 Gummies
SmartyPants
4 Billion3030.9925.83View on iHerb →
25
Doctor's Best, Digestive Enzymes, 90 Veggie Caps
Doctor's Best, Digestive Enzymes, 90 Veggie Caps
Doctor's Best
1 Billion9027.9931.10View on iHerb →

How we rank Bacillus subtilis

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.