uses JavaScript to provide the best possible experience for our content, but your browser has it disabled. Learn how to enable it here.


Probiotic Supplements Reviewed by

Make sure you're choosing the best probiotic supplements approved in our tests!

See the Full Review Now

Join now at

Probiotic supplements, kombuchas and probiotic drinks compared in this review

View Larger Image 6083_small_6083_small_Align-General-Probiotics-Small-2018.jpg

Align Probiotic

View Larger Image 7099_large_Bayer-Probiotic-2020.png

Bayer Phillips' Colon Health Daily Probiotic

View Larger Image 6085_small_6085_small_Culturelle-General-Probiotics-Small-2018.jpg

Culturelle Probiotics Digestive Health

View Larger Image 7101_large_DrMercola-Probiotics-2020.png

Dr. Mercola Complete Probiotics

View Larger Image 6086_small_6086_small_Florastor-General-Probiotics-Small-2018.jpg


View Larger Image 6109_small_6109_small_GardenOfLife-Women-Probiotics-Small-2018.jpg

Garden of Life Dr. Formulated Probiotics Once Daily Women's

View Larger Image 7100_large_GardenOfLife-Probiotics-2020.png

Garden of Life RAW Probiotics Ultimate Care

View Larger Image 6113_small_6113_small_Gerber-Children-Probiotics-Small-2018.jpg

Gerber Soothe Probiotic Colic Drops

View Larger Image 7102_large_GNC-Complex-Probiotic-2020.png

GNC Probiotic Complex

View Larger Image 7103_large_GNC-Womens-Probiotic-020.png

GNC Probiotic Solutions Women's

View Larger Image 7104_large_GoodBelly-Probiotic-2020.png

GoodBelly Probiotics Infused - Watermelon Lime

View Larger Image 7105_large_Hyperbiotics-Probiotic-2020.png

Hyperbiotics Pro-Women

View Larger Image 7106_large_Jamieson-Probiotic-2020.png

Jamieson Probiotic 5 Billion

View Larger Image 7097_large_JarrowFormulas-Infant-Probiotic-2020.png

Jarrow Formulas Jarro-Dophilus Infant

View Larger Image 6110_small_6110_small_Jarrow-Women-Probiotics-Small-2018.jpg

Jarrow Formulas Jarro-Dophilus Women

View Larger Image 7107_large_KlaireLabs-Probiotic-2020.png

Klaire Labs Pro-Biotic Complex

View Larger Image 6092_small_6092_small_Kyo-General-Probiotics-Small-2018.jpg

Kyo-Dophilus Max Probiotic

View Larger Image 7108_large_MaryRuths-Probiotic-2020.png

Mary Ruth's Liquid Probiotic - Unflavored

View Larger Image 7109_large_NaturesBounty-Probiotic-2020.png

Nature's Bounty Probiotic Gummies - Pineapple, Raspberry & Orange Flavored Gummies

View Larger Image 7183_large_NaturesWay-Fortify-Probiotic-2020.png

Nature's Way Fortify Everyday Care 30 Billion

View Larger Image 7110_large_NewRhythm-Probiotics-2020.png

New Rhythm Probiotics 50 Billion CFU

View Larger Image 7416_large_Ariix-Probiotics-2021.png

Nutrifii Probiotiix

View Larger Image 7111_large_PB8-Probiotic-2020.png

PB8 Probiotic

View Larger Image 7112_large_ProBiora-Probiotic-2020.png

ProBiora Plus - Mint

View Larger Image 7113_large_PureEncapsulations-Probiotic-2020.png

Pure Encapsulations Probiotic G.I.

View Larger Image 7115_large_RepHresh-Probiotic-2020.png

RepHresh Pro-B

View Larger Image 7117_large_RxVitamins-Probiotic-2020.png

Rx Vitamins for Pets RxBiotic

View Larger Image 6098_small_6098_small_Schiff-General-Probiotics-Small-2018.jpg

Schiff Digestive Advantage

View Larger Image 7473_large_SeekingHealth-ProbiotaHistaminX-2021.png

Seeking Health ProBiota HistaminX

View Larger Image 7118_large_SmartyPants-Probiotic-2020.png

Smarty Pants Kids Probiotic Complete - Grape

View Larger Image 7119_large_Solgar-Probiotic-2020.png

Solgar Probi 20 Billion

View Larger Image 7120_large_SpringValley-Probiotic-2020.png

Spring Valley Acidophilus

View Larger Image 6104_small_6104_small_Trunature-General-Probiotics-Small-2018.jpg

Trunature Advanced Digestive Probiotic

View Larger Image 6117_small_6117_small_UP4-Children-Probiotics-Small-2018.jpg

Up4 Probiotic Kids Cubes - Soft + Yummy Vanilla Melts

View Larger Image 6105_small_6105_small_USANA-General-Probiotics-Small-2018.jpg

USANA Probiotic

View Larger Image 7122_large_VetriScience-Probiotic-2020.png

VetriScience Vetri Mega Probiotic

View Larger Image 7123_large_Visbiome-Probiotic-2020.png


View Larger Image 7124_large_ZestyPaws-Probiotic-2020.png

Zesty Paws Probiotic Bites - Pumpkin Flavor - Dogs All Ages


What are probiotics? Probiotics are viable (living or hibernating) bacteria and/or yeasts that confer a health benefit. Probiotics are sold as cultured foods and beverages, such as yogurts and kefirs, as well as in capsules, tablets, and powders.

What are the health benefits of probiotics? Certain probiotic strains may be helpful for constipation, bloating, diarrhea and irritable bowel syndrome, while others may be helpful for throat and respiratory infections, and other uses.

What are the best probiotic supplements? We suggest that you check our Results table to find identify products "Approved" for quality in our testing. Then consider the following:

  • Choose a product that contains the type(s) and amounts of probiotic organism(s) shown to work for your condition. See the "What They Do" section and then check the Results table for products that contain that/those organism(s).
  • See our Top Picks for some of the most common uses of probiotics.
  • Be aware that there can be huge variation in the number of viable cells (CFUs) from product to product. Among products tested, this ranged from just 100 million to hundreds of billion! Typically, an adult probiotic should provide at least 1 billion cells daily — although, as discussed in the "What They Do" section, some probiotics have been shown to work at a lower dose.
  • Caution: If you have a milk allergy, be aware that trace amounts of milk proteins may occur in some probiotics (see Concerns and Cautions).

What are prebiotics and postbiotics? Prebiotics promote the growth of probiotic bacteria and may be beneficial for irritable bowel syndrome, constipation, blood sugar control, lowering cholesterol, and other conditions, although in some cases, results are mixed (see All About Prebiotics). Postbiotics include heat-killed probiotics as well as the byproducts of fermentation carried out by probiotic organisms. These may be beneficial for diarrhea, Crohn's disease, irritable bowel syndrome, weight loss, and preventing common colds (see All About Postbiotics).


UPDATE (4/23/20):
CL was contacted this month by the company that makes one of the probiotics that was Not Approved in this Review due to two independent laboratories finding it to be contaminated. The company disputed CL's results, and we've offered the company an opportunity to retest the product at a third-party laboratory of mutual acceptance.
You must be a member to get the full test results along with recommendations and quality ratings. You will get results for 38 probiotic supplements, including three products for pets. Twenty-three products were selected by and 15 others are included for having passed testing in its voluntary Quality Certification Program.

  • Which probiotic supplements and drinks failed our tests and which ones passed
  • CL's Top Picks among probiotic supplements by category, including probiotic supplements for immune system health, diarrhea, constipation, irritable bowel syndrome (IBS), women's health and for pets
  • Which probiotic bacteria or yeasts have been shown effective for treating or preventing specific conditions, and at what dose. These microorganisms include Lactobacillus acidophilus, Lactobacillus GG, Bifidobacterium infantis, Saccharomyces boulardii, and many others
  • Price comparisons of probiotics supplements and drinks
  • Ingredient comparisons and what to look out for on probiotic labels
  • What prebiotics (often included in probiotics) can and cannot do, and how to get them from supplements and foods
  • Tips on how to use probiotics — and store them to last longer  
  • Concerns, cautions, and potential side effects of probiotics and probiotic-containing drinks -- including concerns for people with milk allergies

Join to unlock the full report and get full access to over 1,300 reviews

See the Full Review Now

Join now at