Top 10 probiotics brands on Amazon (estimated revenue)

Ranked by estimated monthly revenue from Amazon's Probiotics Best Sellers top 100. Updated October 15, 2026.

Physician's CHOICE is the top-selling probiotics brand on Amazon by estimated revenue, at about $3.3M/mo from 3 products in the Probiotics Best Sellers top 100. That is about the same as #2 Garden of Life (~$3.3M/mo). The list is fragmented: the top 3 brands take about 32% of its estimated sales and the top 10 about 65%, spread across 49 brands in total. The median list price in this top 100 is $25.99, and 11% of the products are gummies. All figures are modeled estimates, not Amazon data.

#BrandEst. revenue/moShare of listEst. units/moProductsBest rank
1Physician's CHOICE11% share · best #1$3.3M11%167K3#1
2Garden of Life11% share · best #2$3.3M11%117K9#2
3Align10% share · best #14$2.9M10%75.1K9#14
4Seed8% share · best #4$2.5M8%42.1K1#4
5Culturelle7% share · best #5$2.3M7%89.6K6#5
6Florastor6% share · best #7$1.7M6%32.1K2#7
7Lemme4% share · best #10$1.2M4%39.6K2#10
8ZBiotics3% share · best #8$909K3%25.2K1#8
9BIOMA3% share · best #16$808K3%15.5K1#16
10Microbiome Labs2% share · best #27$714K2%10.8K1#27
Estimates, not official Amazon data. Rankings and revenue are modeled from public Amazon Best Sellers lists and list prices (units × price, before returns, discounts and fees; not profit) and may differ from real sales. How it works.

The top 10, brand by brand

1. Physician's CHOICE

~$3.3M/mo est. revenue (11% of this list) and ~167K units/mo from 3 products; best position #1. Its highest-ranked product here is Physician's CHOICE Probiotics 60 Billion CFU - 10 Strains + Organic Prebiotics… at #1. Overall it ranks #22 of 867 brands.

2. Garden of Life

~$3.3M/mo est. revenue (11% of this list) and ~117K units/mo from 9 products; best position #2. Its highest-ranked product here is Garden of Life Dr. Formulated Once Daily Women's Probiotics, 50B CFU, 30ct | 50… at #2. Overall it ranks #9 of 867 brands.

3. Align

~$2.9M/mo est. revenue (10% of this list) and ~75.1K units/mo from 9 products; best position #14. Its highest-ranked product here is Align Probiotic, Pro Formula, Probiotics for Women and Men, Probiotics for… at #14. Overall it ranks #58 of 867 brands.

4. Seed

~$2.5M/mo est. revenue (8% of this list) and ~42.1K units/mo from 1 product; best position #4. Its highest-ranked product here is Seed DS-01 Daily Synbiotic - Adult Probiotic + Prebiotic - 30-Days with Jar… at #4. Overall it ranks #104 of 867 brands.

5. Culturelle

~$2.3M/mo est. revenue (7% of this list) and ~89.6K units/mo from 6 products; best position #5. Its highest-ranked product here is Culturelle Pro Strength Probiotics for Digestive Gut Health*, 12B CFU, 60ct… at #5. Overall it ranks #40 of 867 brands.

6. Florastor

~$1.7M/mo est. revenue (6% of this list) and ~32.1K units/mo from 2 products; best position #7. Its highest-ranked product here is Florastor Probiotic for Digestive and Immune Health, 100 Capsules | Probiotics… at #7. Overall it ranks #148 of 867 brands.

7. Lemme

~$1.2M/mo est. revenue (4% of this list) and ~39.6K units/mo from 2 products; best position #10. Its highest-ranked product here is Lemme Purr Vaginal Probiotic Gummies for Women, 30-Day Supply | Balanced pH… at #10. Overall it ranks #28 of 867 brands.

8. ZBiotics

~$909K/mo est. revenue (3% of this list) and ~25.2K units/mo from 1 product; best position #8. Its highest-ranked product here is ZBiotics Pre-Alcohol Probiotic — Drink Responsibly, for an Easier Tomorrow at #8. Overall it ranks #166 of 867 brands.

9. BIOMA

~$808K/mo est. revenue (3% of this list) and ~15.5K units/mo from 1 product; best position #16. Its highest-ranked product here is BIOMA Probiotics - Digestive Health Probiotic - Gut Support for Men & Women… at #16. Overall it ranks #220 of 867 brands.

10. Microbiome Labs

~$714K/mo est. revenue (2% of this list) and ~10.8K units/mo from 1 product; best position #27. Its highest-ranked product here is Microbiome Labs Mega SporeBiotic Daily Probiotic for Women + Men, 60 Ct at #27. Overall it ranks #285 of 867 brands.

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