Play Why you need probiotics


The power of probiotics

Reclaim your gut health

Play Why you need probiotics

Do probiotics matter?

Many experts agree that the intestinal microbiome is highly important to normal digestion and immune function. They also agree that probiotics help achieve a balanced and healthy intestinal flora to promote these benefits.*

Probiotic supplements are a concentrated source of different strains of the "good" bacteria that research has shown will support numerous functions in the body.*

When you remember that the number of bacteria that comprise the microbiome is fairly fixed - there can only be so many troops on the battlefield - then the more good bacteria you can introduce, the stronger the front line gets.*

Which probiotic is best for me?

Our goal is to help you decide which probiotic supplement you need and when you need it, because when your environment or your lifestyle changes, your GI bacteria - both the good and bad bacteria - will also change, which means your daily probiotic may need to change too.

Explore Thorne's probiotics

What makes Thorne probiotics better

Ideal use
Clinical benefits
Unique formula
FloraPro-LP Probiotic™
  • Individuals on antibiotics
  • Pre-/post-surgery
  • Weakened or impaired immune systems*
  • Studies show antibiotics don't interfere with effectiveness
  • Safe for those with weakened immune systems*
  • Studies show improved hospital outcomes post-illness or surgery*
  • Bio-tract® technology
  • Provides high tolerance for low pH of stomach
  • Released in small intestine
  • Proven colonization in GI tract
Floramend Prime Probiotic®
  • Every day use for people of all ages
  • Adults looking to support weight management
  • Individuals with seasonal allergies
  • Lactobacillus gasseri helps improve Body Mass Index and waist circumference*
  • Improved quality of life in individuals with seasonal allergies*
  • Improved microbiota in older adults to more closely resemble strains in younger populations*
  • Acid-resistant capsule - not destroyed by acid in the stomach
  • Human-based strains
  • No refrigeration needed
Florasport 20B®
  • Athletes
  • World travelers
  • Anyone exposed to unfamiliar food or water
  • Provides benefit for travelers, including athletes, who might require antibiotics
  • Studies show these four strains protect from gut flora disruptions and diarrhea from antibiotic use*
  • NSF Certified for Sport®
  • High CFU count
  • In humidity and temperature resistant blister packs
  • Easy for traveling
Bacillus Coagulans
  • Individuals wanting to support GI function and bowel regularity
  • Every day use for people of all ages
  • Evidence supports its use for functional GI upset - occasional intestinal cramping, gas, bloating, diarrhea, or constipation*
  • Supports already healthy cholesterol levels*
  • Stable spore former
  • Suitable for use in hot beverages
  • No refrigeration necessary
  • Not destroyed by stomach acid
  • Children with short-term diarrhea
  • Anyone on antibiotics
  • Individuals with yeast overgrowth
  • Improves gut immunity by Increasing sIgA*
  • Helps maintain a healthy inflammatory response in the GI tract caused by decreased gut permeability*
  • Patented process preserves whole yeast cells
  • 24-month shelf life at room temperature

The realities of strain count

It is well known among microbiologists that a higher strain count does not necessarily translate to higher efficacy. Many manufacturers use a higher number of organisms because their products lack stability, both on the shelf and in the stomach.

A higher strain count loses its significance if the bacteria are not viable and healthy, or survive poorly in stomach acid, or fail to colonize in the intestines.

Thorne's probiotic supplement suite contains stable probiotic bacterial or yeast strains that resist destruction by stomach acid and promote overall digestive and immune function.*

What strains are in each probiotic?

FloraPro-LP Probiotic™
Ingredient details
1 billion CFUs
(at time of expiration)
Lactobacillus plantarum (DSM 6595)
Floramend Prime Probiotic
5 billion CFUs
(at time of expiration)
Lactobacillus gasseri (KS-13)
Bifidobacterium. longum (MM-2)
Bifidobacterium. bifidum (G9-1)
Florasport 20B
20 billion CFUs
(at time of expiration)
Bifidobacterium lactis (Bl-04)
Bifidobacterium lactis (Bi-07)
Lactobacillus acidophilus (NCFM)
Lactobacillus paracasei (Lpc-37)
Bacillus Coagulans
Ingredient details
2 billion CFUs
(at time of expiration)
Bacillus coagulans (MTCC 5856)
5 billion CFUs
(at time of expiration)
Saccharomyces boulardii (DBVPG 6763)

What others are saying

"I have used Thorne's FloraSport 20B® for more than a year now.

I cycle it with Thorne's FloraMend Prime Probiotic®. FloraSport 20B® remains my personal favorite, and I have had great success with my patients who are on it. Most patients with severe GI issues have seen results within the first week of starting it. I also recommend it a lot to friends and family, who haven't stopped thanking me since they started using it. It's great that it is NSF-certified as well, since we see a significant number of athletes at our wellness practice. I will definitely continue to recommend FloraSport 20B® at my practice in the future.

Preeti Pusalkar, CN
"I love FloraMend Prime Probiotic and so do my clients!

When I am asked what is the one single-best probiotic supplement overall, I always recommend Thorne's FloraMend Prime Probiotic. Great benefits for regulating digestive disturbances from gas, bloating, and irregularity, plus it helps maintain normal vaginal flora. A must have!"

Kia Sinay, L.Ac.
Since taking Thorne's FloraSport 20B®, all her stomach issues have stopped

"My mother has had terrible stomach issues for years that her doctors have been unable to diagnose -- bloating, abdominal cramps, spasms, and contractions. And she never knew when an attack was going to happen, which made her life rough at times. But since she's been taking Thorne's FloraSport 20B®, all of her stomach issues have stopped."

Michelle M., Customer
"FloraMend Prime Probiotic® has made me feel so good!

I've tried other probiotics in the past that have hurt my stomach and had to be refrigerated. This probiotic is super convenient and also way more effective than any others I've tried. I would highly recommend! I only take Thorne supplements now."

Emily D., Customer
Recommended to me by my Naturopath doctor a few years ago

"FloraMend Prime Probiotic® was recommended to me by my Naturopath doctor a few years ago. I have been taking it ever since. No negative side effects like some others I had taken. I have had a significant improvement in the health of my toenails after I started taking this product!"

Julie C., Customer

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Frequently asked questions

What's the difference between a prebiotic and probiotic?

Prebiotics are types of fiber that help to feed probiotic bacteria. Therefore, a prebiotic supplement helps increase beneficial bacteria in the gut by providing food for them. Probiotics are the actual beneficial live organisms - usually bacteria but sometimes a yeast, such as Saccharomyces boulardii, a species similar to Brewer's Yeast.

Are there any differences between probiotics for men and probiotics for women?

Not really. There may be types of delivery systems more suited for women - for example, a vaginal suppository to support good vaginal flora. Along that same line, there are certain probiotics that research shows support healthy vaginal flora even when taken orally - thus, possibly more indicated for women.

What is a human-based strain probiotic?

This is a probiotic supplement that consists of those bacterial strains that are normally found in the human gastrointestinal tract.

Can I take a probiotic at the same time as a prescroption antibiotic?

It is best to take a prescription antibiotic and a probiotic supplement at separate times during the day because some probiotic bacteria can be destroyed by an antibiotic; while others are not. An example of a probiotic that is not destroyed by antibiotics is Saccharomyces boulardii, because it is a yeast and not a bacteria.

Can a probiotic cause gas and bloating?

Because taking a probiotic supplement will change the balance and types of the microorganisms in the gut, as well as the environment in the large intestine, they can create gas in some people. However, this is usually a temporary situation, and the gut tends to normalize in a few days.

Are Thorne probiotic supplements gluten free and dairy free?

Yes, Thorne's probiotic supplement products are gluten free and dairy free.