When it Comes to Choosing Effective Probiotics, Clinically Documented Strains Matter™

As an innovator of consumer probiotics since 1986, Jarrow Formulas has long advocated for the scientific wisdom of formulating multi-strain probiotics, which utilize specially selected bacteria strains that best support targeted health benefits such as intestinal and immune health.*

Strains Matter™, and at Jarrow Formulas we take great pride in using high-quality and scientifically documented strains in our probiotic line that have been developed through years of research and innovation alongside renowned partners Lallemand-Institut Rosell, Chr. Hansen, and Morinaga Dairy.

Looking For a Probiotic That's Right For You?

Living within and upon us is a vast community of microorganisms. They are part of an essential human organ: our microbiome.

The infographic below represents the clinically documented strains found in Jarrow Formulas Probiotics. Click the health function buttons below to highlight probiotic formulations that best fits your needs.

8 Clinically Documented Strains

10 Clinically Documented Strains

1 Clinically Documented Strain

4 Clinically Documented Strains

4 Clinically Documented Strains

1 Clinically Documented Strain

2 Clinically Documented Strains

2 Clinically Documented Strains

4 Clinically Documented Strains

6 Clinically Documented Strains

4 Clinically Documented Strains

6 Clinically Documented Strains

6 Clinically Documented Strains

6 Clinically Documented Strains

5 Clinically Documented Strains

6 Clinically Documented Strains

4 Clinically Documented Strains

2 Clinically Documented Strains

1 Clinically Documented Strain

5 Clinically Documented Strains

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Jarro-Dophilus® EPS

LACTOBACILLUS RHAMNOSUS R0011
A Unique, High Producer of Polysaccharides, That Has Shown Health Benefits in Clinical Studies*

BIFIDOBACTERIUM LONGUM BB536
Morinaga Strain. Extensively Documented (30+ Years of Research), It Impacts IgE Levels Around Airways*

LACTOBACILLUS PLANTARUM R1012
Adapts to a Wide Variety of Ecological Niches Throughout the GI Tract*

LACTOBACILLUS CASEI R0215
Remarkably Adaptive, It Produces Lactic and Folic Acids While Stimulating Mucosal Production*

BIFIDOBACTERIUM BREVE R0070
Stimulates IgA Production and Produces Acetate and Lactic Acid*

LACTOCOCCUS LACTIS SSP. LACTIS R1058
Found in Kefir, It Is an Active Competitor with a Variety of Bacteria and Fungi (Such as Yeasts)*

LACTOBACILLUS HELVETICUS R0052
Helps Break Down Lactose, Which May Improve Digestion of Dairy Products (formerly L. acidophilus)*

PEDIOCOCCUS ACIDILACTICI R1001
Excellent Survivability at pH > 3 and Impacts Il-8 Levels*

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Jarro-Dophilus® Ultra

LACTOBACILLUS RHAMNOSUS R0011
A Unique, High Producer of Polysaccharides, That Has Shown Health Benefits in Clinical Studies*

BIFIDOBACTERIUM LONGUM BB536
Morinaga Strain. Extensively Documented (30+ Years of Research), It Impacts IgE Levels Around Airways*

LACTOBACILLUS PLANTARUM LP-115
Adapted to General Immune Effect, Particularly Th1/Th2 Immune Activity*

LACTOBACILLUS ACIDOPHILUS LA-14
A Proprietary Acidophilus Strain of Human Origin That Ferments 15 Carbohydrates into Lactic Acid*

BIFIDOBACTERIUM BREVE BR-03
Commonly Found Species In Infants, This Strain May Benefit Occasional Constipation*

LACTOBACILLUS SALIVARIUS LS-33
Appears To Increase Bacteroides To Firmicutes Ratios in Human Beings After 12 Weeks*

LACTOBACILLUS PARACASEI LPC-37
LPC-37 May Support Specific Immunity via Effects on IgG and IgM*

BIFIDOBACTERIUM LACTIS BL-04
Strongly Adheres to Intestinal Cell Lines While Showing IL-10 Modulating Activity*

LACTOBACILLUS HELVETICUS R0052
Helps Break Down Lactose, Which May Improve Digestion of Dairy Products (formerly L. acidophilus)*

LACTOBACILLUS CASEI LC-11
A Strain Well-Suited For Intestinal Survivability and Functionality*

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Jarro-Dophilus® Original

BIFIDOBACTERIUM LONGUM BB536 (Morinaga strain)
Extensively Documented (Over 30 Years of Research) It Impacts IgE Levels Around Airways*

LACTOBACILLUS RHAMNOSUS R0011
A Unique, High Producer of Polysaccharides, That Has Shown Health Benefits in Clinical Studies*

LACTOBACILLUS ACIDOPHILUS LA-14
A Proprietary Acidophilus Strain of Human Origin That Ferments 15 Carbohydrates into Lactic Acid*

LACTOBACILLUS CASEI R0215
Remarkably Adaptive, It Produces Lactic and Folic Acids While Stimulating Mucosal Production*

LACTOBACILLUS PLANTARUM R1012
Adapts to a Wide Variety of Ecological Niches Throughout the GI Tract*

BIFIDOBACTERIUM LACTIS BL-04
Strongly Adheres to Intestinal Cell Lines While Showing IL-10 Modulating Activity*

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Jarro-Dophilus® Allergen Free
(10 Billion)

LACTOBACILLUS ACIDOPHILUS LA-02
An Ideal Probiotic Organism With Acid, Bile, and Digestive Enzyme-Resistant Properties*

LACTOBACILLUS PLANTARUM LP-01
Has Shown Some Benefit for Occasional Gas and Bloating*

BIFIDOBACTERIUM BREVE BR-03
Commonly Found Species in Infants, This Strain May Benefit Occasional Constipation*

LACTOBACILLUS RHAMNOSUS LR-04
Helps Balance Intestinal Flora and Shows Hints of Skin Effects*

LACTOBACILLUS PARACASEI LPC-00
A Well-Characterized Strain of a Species Commonly Found In the Human GI Tract*

BIFIDOBACTERIUM LACTIS BS-01
A Well-Characterized Strain of Human Origin with Documented Human Safety*

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Jarro-Dophilus® Allergen Free
(15 Billion)

LACTOBACILLUS ACIDOPHILUS LA-02
An Ideal Probiotic Organism With Acid, Bile, and Digestive Enzyme-Resistant Properties*

LACTOBACILLUS PLANTARUM LP-01
Has Shown Some Benefit for Occasional Gas and Bloating*

BIFIDOBACTERIUM BREVE BR-03
Commonly Found Species in Infants, This Strain May Benefit Occasional Constipation*

LACTOBACILLUS RHAMNOSUS LR-04
Helps Balance Intestinal Flora and Shows Hints of Skin Effects*

LACTOBACILLUS PARACASEI LPC-00
A Well-Characterized Strain of a Species Commonly Found In the Human GI Tract*

BIFIDOBACTERIUM LACTIS BS-01
A Well-Characterized Strain of Human Origin with Documented Human Safety*

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Jarro-Dophilus® + FOS

LACTOBACILLUS ACIDOPHILUS LA-14
A Proprietary Acidophilus Strain of Human Origin That Ferments 15 Carbohydrates into Lactic Acid*

BIFIDOBACTERIUM LONGUM BB536
Morinaga Strain. Extensively Documented (30+ Years of Research), It Impacts IgE Levels Around Airways*

LACTOBACILLUS RHAMNOSUS R0011
A Unique, High Producer of Polysaccharides, That Has Shown Health Benefits in Clinical Studies*

LACTOBACILLUS CASEI R0215
Remarkably Adaptive, It Produces Lactic and Folic Acids While Stimulating Mucosal Production*

LACTOBACILLUS PLANTARUM R1012
Adapts to A Wide Variety of Ecological Niches Throughout the GI Tract*

BIFIDOBACTERIUM LACTIS Bl-04
Strongly Adheres to Intestinal Cell Lines While Showing IL-10 Modulating Activity*

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Jarro-Dophilus® Senior

BIFIDOBACTERIUM LACTIS BL-04
Strongly Adheres to Intestinal Cell Lines While Showing IL-10 Modulating Activity*

LACTOBACILLUS PLANTARUM LP-115
Adapted to General Immune Effect, Particularly Th1/Th2 Immune Activity*

BIFIDOBACTERIUM LONGUM BB536 (Morinaga strain)
Extensively Documented (Over 30 Years of Research), it Impacts IgE Levels Around Airways*

LACTOBACILLUS ACIDOPHILUS LA-14
A Proprietary Acidophilus Strain of Human Origin that Ferments 15 Carbohydrates into Lactic Acid*

LACTOBACILLUS RHAMNOSUS R0011
A Unique, High Producer of Polysaccharides That Has Shown Health Benefits in Clinical Studies*

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Bifidus Balance® + FOS

BIFIDOBACTERIUM BREVE BR03
Commonly Found Species in Infants, This Strain May Benefit Occasional Constipation*

BIFIDOBACTERIUM LONGUM BB536
Morinaga Strain. Extensively Documented (30+ Years of Research), It Impacts IgE Levels Around Airways*

BIFIDOBACTERIUM BIFIDUM BB01
Supports Immunity and Thrives in the Presence of Ascorbic Acid (Vitamin C)*

BIFIDOBACTERIUM LACTIS Bl-04
Strongly Adheres to Intestinal Cell Lines While Showing IL-10 Modulating Activity*

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Jarro-Dophilus® Oral Probiotic

LACTOBACILLUS BREVIS CECT 7480
Documented Oral Probiotic Strains For The Mouth & Throat That Help Maintain Healthy Oral Microflora*

LACTOBACILLUS PLANTARUM CECT 7481
Documented Oral Probiotic Strains for The Mouth and Throat That Help Maintain Healthy Oral Microflora*

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Yum-Yum Dophilus®

LACTOBACILLUS ACIDOPHILUS LA-02
A Proprietary Acidophlius Strain of Human Origin that Ferments 15 Carbohydrates into Lactic Acid*

LACTOBACILLUS PLANTARUM LP-01
Adapted to General Immune Effect, Particularly Th1/Th2 Immune Activity*

BIFIDOBACTERIUM BREVE BR-03
Commonly Found Species in Infants, This Strain May Benefit Occasional Constipation*

BIFIDOBACTERIUM LACTIS BS-01
Strongly Adheres to Intestinal Cell Lines While Showing IL-10 Modulating Activity*

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Baby's Jarro-Dophilus® + GOS

BIFIDOBACTERIUM BREVE M-16V
Extensively Studied In Infants, It May Impact Skin Immune Activity Beyond the Intestines*

BIFIDOBACTERIUM BIFIDUM BB-02
Shows Excellent Adhesion to Human Epithelial Cells and Especially Resistant to Low pH*

BIFIDOBACTERIUM LONGUM BB536
Morinaga Strain. Extensively Documented (30+ Years of Research), Impacts IgE Levels Around Airways*

LACTOBACILLUS CASEI R0215
Remarkably Adaptive, It Produces Lactic and Folic Acids While Stimulating Mucosal Production*

BIFIDOBACTERIUM LACTIS BL-04
Strongly Adheres to Intestinal Cell Lines While Showing IL-10 Modulating Activity*

LACTOBACILLUS RHAMNOSUS LR-32
A Unique, High Producer of Polysaccharides, That Has Shown Health Benefits in Clinical Studies*

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Jarro-Dophilus® Infant

BIFIDOBACTERIUM LONGUM SUBSP. INFANTIS M-63
B. infantis Is Associated with Improved Growth, the Development of Intestinal Membrane Integrity, and Is Critical for Developing Immune Function*

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Jarro-Dophilus® Women
(5 Billion)

L. CRISPATUS LBV 88
Vaginally-Derived Strain That Is a Prolific Producer of D- and L-Lactic Acid Isomers to Reduce Vaginal pH and Reinforce Vaginal Lactobacilli Predominance*

L. JENSENII LBV 116
Vaginally-Derived Strain That Grows Well Under Both Aerobic and Anaerobic Conditions, and Promotes Vaginal Lactobacilli Abundance*

L. GASSERI LBV 150N
Vaginally-Derived Strain That Produces Extracellular H2O2 and Promotes Vaginal Acidification*

L. RHAMNOSUS LBV 96
Inhibits Activity of Common Undesirable Vaginal Bacteria and Yeast*

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Jarro-Dophilus® Women
(10 Billion)

L. CRISPATUS LBV 88
Vaginally-Derived Strain That Is a Prolific Producer of D- and L-Lactic Acid Isomers to Reduce Vaginal pH and Reinforce Vaginal Lactobacilli Predominance*

L. JENSENII LBV 116
Vaginally-Derived Strain That Grows Well Under Both Aerobic and Anaerobic Conditions, and Promotes Vaginal Lactobacilli Abundance*

L. GASSERI LBV 150N
Vaginally-Derived Strain That Produces Extracellular H2O2 and Promotes Vaginal Acidification*

L. RHAMNOSUS LBV 96
Inhibits Activity of Common Undesirable Vaginal Bacteria and Yeast*

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Fem-Dophilus®

LACTOBACILLUS RHAMNOSUS GR-1
Upregulates Host Defense Factors and Disrupts Biofilms via Quorum Sensing Activity*

LACTOBACILLUS REUTERI RC-14
Generates Hydrogen Peroxide and Stimulates Mucin Production*

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Fem-Dophilus® (Shelf Stable)

LACTOBACILLUS RHAMNOSUS GR-1
Upregulates Host Defense Factors and Disrupts Biofilms via Quorum Sensing Activity*

LACTOBACILLUS REUTERI RC-14
Generates Hydrogen Peroxide and Stimulates Mucin Production*

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Ideal Bowel Support® 299V®

LACTOBACILLUS PLANTARUM 299v®
L. plantarum Strain with Exceptional Adherence and Colonization Characteristics in the Gut, Providing Ideal Bowel Support*

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Saccharomyces Boulardii + MOS

SACCHAROMYCES BOULARDII (A S. CEREVISIAE STRAIN)
Saccharomyces Boulardii Is a Probiotic Yeast That Survives Stomach Acid and Helps Support Healthy Intestinal Flora*

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Jarro-Dophilus® Mood

BIFIDOBACTERIUM LONGUM R0175
Shown in Research to Support a Positive Mood Balance When Used in Combination with L. helveticus R0052*

LACTOBACILLUS RHAMNOSUS R0011
Shown in Preclinical Research to Reduce Mental Stress-Induced Gut Barrier Dysfunction When Used in Combination with L. helveticus R0052*

LACTOBACILLUS HELVETICUS R0052
Shown in Human Research to Reduce Gastrointestinal Discomfort Associated with Regularly Experienced Life Stress When Used in Combination with B. longum R0175*

BIFIDOBACTERIUM LONGUM BB536
Support Intestinal Health and Function, Which Plays an Essential Role in the Functioning of the Gut-Brain Axis*

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Pet Dophilus®

LACTOBACILLUS CASEI KE-01
Complements the Growth of L. acidophilus, a Producer of the Enzyme Amylase*

ENTEROCOCCUS FAECIUM PF7101
A Gram-Positive, Alpha-Hemolytic Bacteria Shown to Promote Immune Health in Animals and Promote Regularity*

BIFIDOBACTERIUM ANIMALIS SUBSP. LACTIS BI-04
An Anaerobic Bacteria Shown to Tolerate Acid/Bile, Easily Inhabits the Intestines, and Supports Immune Health*

LACTOBACILLUS ACIDOPHILUS LA-14
A Proprietary Acidophilus Strain of Human Origin that Ferments 15 Carbohydrates into Lactic Acid

PEDIOCOCCUS ACIDILACTICI PF7103
A Probiotic Commonly Found in Fermented Foods That Is Viable at Low pH and High Temperatures of the GI Tract*

Strain Transparency

Some probiotic manufacturers sometimes list only the genus and species names in the supplement facts panel, leaving out the specific strains that are actually present in the product. Jarrow Formulas Probiotics clearly list strain identifications in the supplement facts panel of every formulation for full strain transparency of the probiotics that customers are purchasing.

How To Locate Strain
Identification Numbers

It’s important to look for product labels that are transparent in identifying the specific probiotic strains present in the formulation. Probiotic strain identification numbers (see strain IDs listed in RED to the left) are displayed as a unique letter and number code following the genus and species name (e.g. “Lactobacillus acidophilus La-14”). Strain transparency is critical when choosing an effective probiotic. Genus and species names are typically listed on most supplement facts panels, but identifying the specific strain that’s actually in the product is what’s most important.

Avoid Unidentified
Probiotic Strain IDs

Make sure your probiotics contain probiotic strains that have been clinically documented and researched for positive effects. Avoid products that list only generic genus and species names that entirely leave out probiotic strain ID numbers. Such manufacturers are often attempting to hide generic, poorly characterized, or even completely unidentified strains.

Trust the Brand That Helped Pioneer Probiotics

Jarrow Formulas’ probiotics contain high-quality, clinically documented strains developed through years of research and innovation for effectiveness. Jarrow Formulas helped pioneer the nascent field of probiotics in the 1980s with the original Jarro-Dophilus multi-strain formula.