BioMeBar strain and ingredient library

Reviewed by Dr. Nikita Dinger, Founder & CEO, BioMeBar. Last reviewed 7 October 2026.

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This is the BioMeBar strain and ingredient library: every probiotic strain, prebiotic fibre and added ingredient used across our personalised synbiotic blends, with what research has studied each one for. Last updated 7 October 2026.

The short answer

BioMeBar blends combine three or four probiotic strains from the Lactobacillus group and the Bifidobacterium group with one or more prebiotic fibres. A few blends also include the yeast Saccharomyces boulardii, or vitamins, minerals, enzymes, or plant extracts. Total probiotic doses range from 1 to 13 billion CFU per serving. Among the best-researched ingredients in our portfolio are L. rhamnosus GG (digestive comfort and diarrhoea), B. animalis subsp. lactis (regularity), and the fibres PHGG and GOS. The products are made by Scythian Healthcare in Delhi and marketed by BioMeBar Health & Wellness Solutions Pvt. Ltd.

What is a synbiotic

A synbiotic is a combination of advanced probiotics, which are live microorganisms chosen for a purpose, prebiotics, which are fibres that feed beneficial bacteria, and postbiotics, which are the useful compounds that bacteria produce. BioMeBar matches the combination to each client’s gut profile and symptoms. Read more on the synbiotics page.

All blends at a glance

Each row is one blend, with the ingredients as printed on its Supplement Facts label or recorded in our clinical records. Where a dose is shown in brackets, it is in billions of CFU. Each sachet is taken once a day in half a glass of a drink of your choice.

Which ingredient is used for what

This table maps common searches to the ingredients in our portfolio that research has looked at for that concern. “Studied for” is not the same as proven. Effects depend on the exact strain, the dose and the person, and BioMeBar does not claim that any blend treats or cures a condition.

Probiotic strain library

Probiotic effects belong to specific strains, not to a whole species. Each entry below shows the exact strain where our labels name one and what research has studied it for. Where a study used a named strain, the strain is shown in brackets. Scientific names for several lactobacilli changed in 2020, so the current name is shown alongside the name on the label.

L. rhamnosus GG

Scientific name: Lacticaseibacillus rhamnosus GG (ATCC 53103). Isolated in 1985 and one of the most extensively studied probiotic strains in the world. It sticks to the gut lining and has a long safety record.

Studied for:

• Preventing antibiotic-associated diarrhoea
• Shortening acute infectious diarrhoea in children
• Easing digestive side effects of H. pylori eradication therapy
• Supporting the gut barrier
• Everyday digestive comfort

LGG is the most widely researched strain in our portfolio and anchors several BioMeBar blends. In BioMeBar blends: Blend 3, Blend 5, Blend 7, Blend 8, Blend 9.

L. rhamnosus GR-1

Scientific name: Lacticaseibacillus rhamnosus GR-1. A strain studied for women’s urogenital health, often alongside L. fermentum RC-14.

Studied for:

• Supporting a Lactobacillus-dominant vaginal microbiota
• Women’s urinary and vaginal comfort

In BioMeBar blends: Blend 6, Blend 12.

L. reuteri

Scientific name: Limosilactobacillus reuteri (including DSM 17938). A species found naturally in the human gut that makes reuterin, a natural antimicrobial compound. Effects belong to specific strains.

Studied for:

• Crying time in breastfed infants with colic (strain DSM 17938)
• Functional abdominal pain in children
• Keeping unwanted microbes in check through reuterin

DSM 17938 is named in Blend 7. In BioMeBar blends: Blend 4, Blend 7, Blend 12.

L. plantarum

Scientific name: Lactiplantibacillus plantarum (including PS128). Found in fermented vegetables and pickles and known for surviving well in the gut.

Studied for:

• IBS abdominal pain and bloating (strain 299v)
• Iron absorption from a meal (strain 299v)
• Stress, mood and sleep (strain PS128, studied as a psychobiotic)

PS128 is a psychobiotic strain from Taiwan, included in Blend 11 alongside other gut-brain strains. In BioMeBar blends: Blend 4, Blend 8, Blend 11.

L. acidophilus

Scientific name: Lactobacillus acidophilus. A long-used species found in fermented dairy and in the human gut.

Studied for:

• Preventing antibiotic-associated diarrhoea, in combination with B. lactis
• Lactose digestion
• General digestive comfort

In BioMeBar blends: Blend 2, Blend 10.

L. casei

Scientific name: Lacticaseibacillus casei. A species found in fermented milk drinks and in the gut. It is used for its good survival through digestion and its pairing with fibre.

Studied for:

• Everyday digestive comfort
• Regularity, together with psyllium and inulin

In BioMeBar blends: Blend 1.

L. fermentum

Scientific name: Limosilactobacillus fermentum. Found in fermented foods and the human gut.

Studied for:

• Lactational mastitis in breastfeeding women (strain CECT5716)
• Antioxidant markers (strain ME-3)

In BioMeBar blends: Blend 3, Blend 9.

L. gasseri

Scientific name: Lactobacillus gasseri (including CP2305). A species found in the gut and the vagina.

Studied for:

• Waist size and belly fat in overweight adults (strain SBT2055)
• Stress-related outcomes and sleep (strain CP2305)

CP2305 is the strain named in Blend 10. In BioMeBar blends: Blend 6, Blend 10, Blend 12.

L. helveticus R0052

Scientific name: Lactobacillus helveticus R0052. A strain studied as a psychobiotic, meaning a probiotic studied for effects on stress and mood through the gut-brain axis.

Studied for:

• Psychological distress and stress markers, together with B. longum R0175
• Cortisol in people with low baseline levels

In BioMeBar blends: Blend 11.

B. longum BB536

Scientific name: Bifidobacterium longum subsp. longum BB536. Isolated in 1969 from a healthy infant and one of the longest-marketed probiotic strains, with a broad set of human trials.

Studied for:

• Bowel regularity in constipation-prone adults
• Immune function in older adults
• Seasonal allergic rhinitis (hay fever) symptoms

In BioMeBar blends: Blend 8, Blend 10, Blend 11.

B. longum 1714

Scientific name: Bifidobacterium longum 1714. A strain studied in healthy volunteers for its effect on the stress response.

Studied for:

• Stress reactivity (cortisol and self-rated anxiety)
• Sleep quality and well-being
• Brain activity under social stress

In BioMeBar blends: Blend 11.

B. longum

Scientific name: Bifidobacterium longum. One of the most common Bifidobacterium species in the adult gut, used in several blends to support a bifidobacteria-rich gut.

Studied for:

• Supporting bifidobacteria in the gut together with prebiotic fibre

In BioMeBar blends: Blend 3, Blend 9.

B. infantis 35624

Scientific name: Bifidobacterium longum subsp. infantis 35624 (labelled B. infantis 35624). A strain developed at University College Cork and one of the most-studied single strains for IBS.

Studied for:

• IBS abdominal pain, bloating and bowel difficulty
• Normalising the IL-10/IL-12 inflammatory ratio seen in IBS

In BioMeBar blends: Blend 8.

B. lactis / B. animalis

Scientific name: Bifidobacterium animalis subsp. lactis (written as B. lactis or B. animalis on our labels). A well-researched Bifidobacterium species. Strains such as HN019, DN-173 010 and BB-12 have been studied extensively.

Studied for:

• Shortening gut transit time and improving regularity (strains HN019 and DN-173 010)
• Immune function (strains BB-12 and HN019)
• Gut barrier function and pathogen defence

In BioMeBar blends: Blend 2, Blend 6, Blend 7, Blend 12.

B. bifidum

Scientific name: Bifidobacterium bifidum. A Bifidobacterium found in the gut from infancy that lives in close contact with the gut lining.

Studied for:

• Supporting a bifidobacteria-rich gut together with prebiotic fibre

In BioMeBar blends: Blend 2, Blend 4.

B. breve

Scientific name: Bifidobacterium breve. A Bifidobacterium common in the infant gut and also found in adults.

Studied for:

• Supporting a bifidobacteria-rich gut together with prebiotic fibre

In BioMeBar blends: Blend 4, Blend 5.

S. boulardii

Scientific name: Saccharomyces cerevisiae var. boulardii. A probiotic yeast rather than a bacterium, so antibiotics do not affect it. It is used alongside bacterial strains in Blend 5.

Studied for:

• Digestive comfort during and after antibiotic courses
• Everyday digestive comfort

In BioMeBar blends: Blend 5.

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Prebiotic fibres and other ingredients

PHGG (partially hydrolysed guar gum)

A soluble prebiotic fibre that is well tolerated and low in FODMAPs. Studied for IBS symptoms and quality of life, for constipation and regularity, and for shifting gut bacteria towards butyrate production. In BioMeBar blends: Blend 8, Blend 9, Blend 10, Blend 11, Blend 12.

Inulin (chicory root fibre)

The classic prebiotic. It reliably increases bifidobacteria, helps regularity and supports calcium absorption. In BioMeBar blends: Blend 1, Blend 3, Blend 4, Blend 9.

GOS (galacto-oligosaccharides)

A prebiotic that selectively feeds bifidobacteria even at low doses. A B-GOS mixture has been studied for bloating and abdominal discomfort and is well tolerated. In BioMeBar blends: Blend 10, Blend 11.

Acacia fibre (gum arabic)

A gentle prebiotic that raises bifidobacteria and lactobacilli and is exceptionally well tolerated, even at high doses. In BioMeBar blends: Blend 2, Blend 7, Blend 10.

FOS (fructo-oligosaccharides)

A short-chain prebiotic fibre also found in onion, garlic and banana that feeds bifidobacteria. In BioMeBar blends: Blend 2, Blend 6.

Psyllium husk powder

A soluble, gel-forming fibre from the seed husk of Plantago ovata (isabgol), traditionally used for regularity. Drink it with enough water. In BioMeBar blends: Blend 1.

Oligosaccharide functional fibre

A prebiotic oligosaccharide fibre that feeds beneficial bacteria. In BioMeBar blends: Blend 5.

Sodium butyrate

Butyrate is a short-chain fatty acid that the cells lining the colon use as fuel. It is the same compound gut bacteria make when they ferment fibre such as PHGG. In BioMeBar blends: Blend 8, Blend 10.

Zinc L-carnosine

A compound of zinc and the amino acid derivative carnosine, studied for its effect on the lining of the stomach and gut. In BioMeBar blends: Blend 8.

Quercetin

A plant flavonoid with antioxidant activity found in onions and apples. In BioMeBar blends: Blend 8.

Curcumin (turmeric extract)

The main active compound in turmeric, valued for its antioxidant activity. In BioMeBar blends: Blend 3, Blend 9.

Vitamin C and zinc

Nutrients that support normal immune function. In BioMeBar blends: Blend 3, Blend 8, Blend 9.

Polyphenol extract

A plant extract rich in polyphenols, which gut bacteria also use as a food source. In BioMeBar blends: Blend 10.

Digestive enzymes (amylase, protease, lipase)

Enzymes that break down starch, protein and fat. In BioMeBar blends: Blend 4, Blend 7.

Magnesium (bisglycinate, malate and glycinate) and vitamin B6

A mineral and a vitamin that contribute to normal nervous system function. In BioMeBar blends: Blend 5, Blend 11.

Cranberry extract

A plant extract rich in proanthocyanidins, traditionally used and studied for urinary tract health. In BioMeBar blends: Blend 12.

Triphala and peppermint leaf

Traditional Ayurvedic and herbal ingredients used for digestive comfort. In BioMeBar blends: Blend 1.

Ashwagandha and brahmi extracts

Traditional herbal extracts used for stress and well-being. In BioMeBar blends: Blend 5.

Vitamin B complex and chromium

Vitamins and a trace mineral in small amounts. In BioMeBar blends: Blend 5.

L-carnitine, ginseng and green tea extract

An amino-acid derivative and two plant extracts used for energy and metabolic support. In BioMeBar blends: Blend 6.

What is the same in every blend

• Other ingredients: dextrin (INS 1400), starch, acidity regulator (INS 330) and anti-caking agent (INS 551)
• Natural flavours, no added sugar, vegan and cruelty free
• One single-dose sachet a day. Do not use an open sachet. Store in a cool, dry, dark place away from sunlight
• Dietary food supplement, not for medicinal use. Keep out of reach of children

Who should check with a doctor first

People who are pregnant or breastfeeding, immunosuppressed or seriously ill, have a central venous line, have a thyroid condition or gallstones, or take regular medicines such as blood thinners or antibiotics should speak to their doctor before using any synbiotic or herbal product, and tell us about it. See a doctor for blood in stool, unexplained weight loss, persistent vomiting or severe pain.

Questions

What probiotic strains are in BioMeBar synbiotics?

BioMeBar blends use these probiotics: Lacticaseibacillus rhamnosus GG and GR-1, L. acidophilus, L. casei, L. plantarum (including PS128), L. reuteri (including DSM 17938), L. fermentum, L. gasseri (including CP2305), L. helveticus R0052, Bifidobacterium longum (including BB536 and 1714), B. longum subsp. infantis 35624, B. animalis subsp. lactis, B. bifidum, B. breve and Saccharomyces boulardii. Each blend combines three or four of these with prebiotic fibres.

How many CFU are in a BioMeBar sachet?

Between 1 billion and 13 billion CFU per serving, depending on the blend. The exact figure is on each blend’s Supplement Facts label.

What prebiotic fibres do BioMeBar blends use?

PHGG (partially hydrolysed guar gum), inulin, GOS, acacia fibre, FOS, psyllium husk and an oligosaccharide functional fibre.

Which probiotic strain is studied for bloating?

Several. L. plantarum 299v and B. infantis 35624 have been studied for IBS-type pain and bloating. Among prebiotics, PHGG and GOS are studied for digestive comfort. Response depends on the cause of your bloating, so a personalised match matters.

Which probiotic is used for constipation and regularity?

Bifidobacterium animalis subsp. lactis strains such as HN019 and DN-173 010 have been studied for shortening gut transit time, and B. longum BB536 for bowel regularity. PHGG fibre is also well studied. Persistent constipation needs a doctor.

Which probiotic is used for diarrhoea after antibiotics?

Lacticaseibacillus rhamnosus GG is the best-studied strain for preventing antibiotic-associated diarrhoea, and L. acidophilus and S. boulardii are also used. Ask your doctor or pharmacist about timing with your antibiotic.

Which probiotic strains are studied for stress and the gut-brain axis?

B. longum 1714, L. helveticus R0052 (with B. longum R0175), L. plantarum PS128 and L. gasseri CP2305 have been studied in people for stress response and sleep. They are not treatments for anxiety or depression.

Why does BioMeBar use more than one blend?

Different people have different gut profiles and symptoms, so BioMeBar matches a personalised synbiotic, which combines advanced probiotics, prebiotics and postbiotics, to each client instead of selling one product to everyone.

Are BioMeBar products vegan, and are they approved by FSSAI?

Yes, the products are FSSAI approved. The labels state vegan, cruelty free, natural flavours and no added sugar. The products are dietary food supplements and are not for medicinal use.

Who should check with a doctor before using a synbiotic?

Anyone who is pregnant, immunosuppressed, seriously ill, has a central venous line, or takes regular medicines such as blood thinners, thyroid medicine or antibiotics. Tell your doctor and tell us.

Sources

Findings come from the BioMeBar Clinical Credibility and Scientific Evidence Dossier (version 1.0, June 2026). Key references:

1. Szajewska H, Kołodźiej M. Systematic review with meta-analysis: Lactobacillus rhamnosus GG in the prevention of antibiotic-associated diarrhoea in children and adults. Aliment Pharmacol Ther. 2015;42(10):1149-57. PMID: 26365389.
2. Szajewska H, Kołodźiej M, Gieruszczak-Białek D, Skórka A, Ruszczyński M, Shamir R. Systematic review with meta-analysis: Lactobacillus rhamnosus GG for treating acute gastroenteritis in children – a 2019 update. Aliment Pharmacol Ther. 2019;49(11):1376-84. PMID: 31025399.
3. O’Mahony L, McCarthy J, Kelly P, et al. Lactobacillus and Bifidobacterium in irritable bowel syndrome: symptom responses and relationship to cytokine profiles. Gastroenterology. 2005;128(3):541-51. PMID: 15765388.
4. Whorwell PJ, Altringer L, Morel J, et al. Efficacy of an encapsulated probiotic Bifidobacterium infantis 35624 in women with irritable bowel syndrome. Am J Gastroenterol. 2006;101(7):1581-90. PMID: 16863564.
5. Yuan F, Ni H, Asche CV, Kim M, Walayat S, Ren J. Efficacy of Bifidobacterium infantis 35624 in patients with irritable bowel syndrome: a meta-analysis. Curr Med Res Opin. 2017;33(7):1191-7. PMID: 28166427.
6. Messaoudi M, Lalonde R, Violle N, et al. Assessment of psychotropic-like properties of a probiotic formulation (Lactobacillus helveticus R0052 and Bifidobacterium longum R0175) in rats and human subjects. Br J Nutr. 2011;105(5):755-64. PMID: 20974015.
7. Allen AP, Hutch W, Borre YE, et al. Bifidobacterium longum 1714 as a translational psychobiotic: modulation of stress, electrophysiology and neurocognition in healthy volunteers. Transl Psychiatry. 2016;6(11):e939. PMID: 27801892.
8. Wang H, Braun C, Murphy EF, Enck P. Bifidobacterium longum 1714 strain modulates brain activity of healthy volunteers during social stress. Am J Gastroenterol. 2019;114(7):1152-62. PMID: 30998517.
9. Reid G, Charbonneau D, Erb J, et al. Oral use of Lactobacillus rhamnosus GR-1 and L. fermentum RC-14 significantly alters vaginal flora: randomized, placebo-controlled trial in 64 healthy women. FEMS Immunol Med Microbiol. 2003;35(2):131-4. PMID: 12628548.
10. Ducrotté P, Sawant P, Jayanthi V. Clinical trial: Lactobacillus plantarum 299v (DSM 9843) improves symptoms of irritable bowel syndrome. World J Gastroenterol. 2012;18(30):4012-8. PMID: 22969234.
11. Kadooka Y, Sato M, Imaizumi K, et al. Regulation of abdominal adiposity by probiotics (Lactobacillus gasseri SBT2055) in adults with obese tendencies. Eur J Clin Nutr. 2010;64(6):636-43. PMID: 20216555.
12. Kadooka Y, Sato M, Ogawa A, et al. Effect of Lactobacillus gasseri SBT2055 on visceral fat accumulation: a randomized controlled trial. Br J Nutr. 2013;110(9):1696-703. PMID: 23614897.
13. Waller PA, Gopal PK, Leyer GJ, et al. Dose-response effect of Bifidobacterium lactis HN019 on whole gut transit time and functional gastrointestinal symptoms in adults. Scand J Gastroenterol. 2011;46(9):1057-64. PMID: 21679467.
14. Miller LE, Ouwehand AC. Probiotic supplementation decreases intestinal transit time: meta-analysis of randomized controlled trials. World J Gastroenterol. 2013;19(29):4718-25. PMID: 23717797.
15. Niv E, Halak A, Tiommny E, et al. Randomized clinical study: partially hydrolyzed guar gum (PHGG) versus placebo in the treatment of patients with irritable bowel syndrome. Nutr Metab (Lond). 2016;13:10. PMID: 26855665.
16. Kapoor MP, Sugita M, Fukuzawa Y, Okubo T. Impact of partially hydrolyzed guar gum (PHGG) on constipation prevention: a systematic review and meta-analysis. J Funct Foods. 2017;33:52-66. DOI: 10.1016/j.jff.2017.03.045.
17. Vulevic J, Tzortzis G, Juric A, Gibson GR. Effect of a prebiotic galactooligosaccharide mixture (B-GOS) on gastrointestinal symptoms in adults selected from a general population who suffer with bloating, abdominal pain, or flatulence. Neurogastroenterol Motil. 2018;30(11):e13440. PMID: 29766654.
18. Gibson GR, Hutkins R, Sanders ME, et al. Expert consensus document: The International Scientific Association for Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of prebiotics. Nat Rev Gastroenterol Hepatol. 2017;14(8):491-502. PMID: 28611480.
19. Arroyo R, Martín V, Maldonado A, Jiménez E, Fernández L, Rodríguez JM. Treatment of infectious mastitis during lactation: antibiotics versus oral administration of lactobacilli isolated from breast milk. Clin Infect Dis. 2010;50(12):1551-8. PMID: 20455694.
20. Calame W, Weseler AR, Viebke C, Flynn C, Siemensma AD. Gum arabic establishes prebiotic functionality in healthy human volunteers in a dose-dependent manner. Br J Nutr. 2008;100(6):1269-75. PMID: 18430261.

Related

Probiotics vs prebiotics vs synbiotics · Advanced probiotics · Prebiotics · Postbiotics · The Indian gut microbiome · Our approach

BioMeBar provides nutrition and gut health guidance and does not replace medical care. See a doctor for severe, persistent or worrying symptoms.

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