20 Best Saccharomyces Boulardii Acne [2024]

Are you looking for the best saccharomyces boulardii acne? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling saccharomyces boulardii acne.

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1 Vitamin Bounty Pro 50 Probiotics with 13 Probiotic Strains, Prebiotic Fermented Greens and Delayed... Vitamin Bounty Pro 50 Probiotics with 13 Probiotic Strains, Prebiotic Fermented Greens and...
2 Renew Life® Adult Probiotic - Ultimate Flora™ Saccharomyces boulardii Probiotic Supplement -... Renew Life® Adult Probiotic - Ultimate Flora™ Saccharomyces boulardii Probiotic Supplement -...
3 Zhou S. Boulardii Probiotic 440 mg | Mens & Womens Probiotics | Shelf Stable Immune Support | 60... Zhou S. Boulardii Probiotic 440 mg | Mens & Womens Probiotics | Shelf Stable Immune Support | 60...
4 Now Foods Supplements, Saccharomyces Boulardii, 5 Billion CFU Probiotic, 120 Veg Capsules Now Foods Supplements, Saccharomyces Boulardii, 5 Billion CFU Probiotic, 120 Veg Capsules
5 Pure TheraPro Rx Saccharomyces 10B - Saccharomyces Boulardii, 10 Billion CFU Per Serving, Patented... Pure TheraPro Rx Saccharomyces 10B - Saccharomyces Boulardii, 10 Billion CFU Per Serving,...
6 Klaire Labs Saccharomyces Boulardii - Probiotic Supplement to Help Support Healthy Yeast Balance,... Klaire Labs Saccharomyces Boulardii - Probiotic Supplement to Help Support Healthy Yeast Balance,...
7 Florastor Daily Probiotic Supplement for Women and Men, Proven to Support Digestive Health,... Florastor Daily Probiotic Supplement for Women and Men, Proven to Support Digestive Health,...
8 Florastor Daily Probiotic Supplement for Women and Men, Proven to Support Digestive Health,... Florastor Daily Probiotic Supplement for Women and Men, Proven to Support Digestive Health,...
9 Designs for Health Saccharomyces Boulardii Probiotic - FloraMyces 500mg Gut Health Supplements -... Designs for Health Saccharomyces Boulardii Probiotic - FloraMyces 500mg Gut Health Supplements -...
10 Jarrow Formulas Saccharomyces Boulardii + MOS - 5 Billion Viable Organisms Per Serving - 90 Delayed... Jarrow Formulas Saccharomyces Boulardii + MOS - 5 Billion Viable Organisms Per Serving - 90...
11 DrFormulas Saccharomyces Boulardii Probiotic 10 Billion CFUs | Nexabiotic S boulardii, Immune and... DrFormulas Saccharomyces Boulardii Probiotic 10 Billion CFUs | Nexabiotic S boulardii, Immune and...
12 RepHresh Pro-B Probiotic Supplement for Women, 30 Oral Capsules RepHresh Pro-B Probiotic Supplement for Women, 30 Oral Capsules
13 Thorne Sacro-B Probiotic - Enhances Immune Function in The Gut - 60 Capsules Thorne Sacro-B Probiotic - Enhances Immune Function in The Gut - 60 Capsules
14 Pure Encapsulations - Saccharomyces Boulardii - Natural Probiotic to Balance Intestinal Flora - 60... Pure Encapsulations - Saccharomyces Boulardii - Natural Probiotic to Balance Intestinal Flora -...
15 DrFormulas' Best Probiotics for Women & Men | Nexabiotic Multi Probiotic with Saccharomyces... DrFormulas' Best Probiotics for Women & Men | Nexabiotic Multi Probiotic with Saccharomyces...
16 Digestive Enzymes 1000MG Plus Prebiotics & Probiotics Supplement, 180 Capsules, Organic Plant-Based... Digestive Enzymes 1000MG Plus Prebiotics & Probiotics Supplement, 180 Capsules, Organic...
17 NOW Supplements, Saccharomyces Boulardii,Probiotic 5 Billion CFU, 60 Veg Capsules NOW Supplements, Saccharomyces Boulardii,Probiotic 5 Billion CFU, 60 Veg Capsules
18 BioActive Vegan Vitamin B12 Sublingual Liquid Supplement - B12 Liquid Vitamin Drops with... BioActive Vegan Vitamin B12 Sublingual Liquid Supplement - B12 Liquid Vitamin Drops with...
19 Jarrow Formulas Saccharomyces Boulardii + MOS - 5 Billion Viable Organisms Per Serving - 90 Delayed... Jarrow Formulas Saccharomyces Boulardii + MOS - 5 Billion Viable Organisms Per Serving - 90...
20 Florastor Kids Daily Probiotic Supplement, Tutti-Frutti Flavor Powder Mixes with Food or Beverage,... Florastor Kids Daily Probiotic Supplement, Tutti-Frutti Flavor Powder Mixes with Food or...
SaleBestseller No. 1
Vitamin Bounty Pro 50 Probiotics with 13 Probiotic Strains, Prebiotic Fermented Greens and Delayed...
  • 50 Billion Organisms: Vitamin Bounty's Pro-50 probiotics for digestive health offers a potent 50 Billion organisms per serving, making it one of the...
  • 13 Probiotic Strains: Unlike other probiotics that only contain 1 or 2 probiotic strains, Pro-50 has 13 probiotic strains, ensuring you will get the...
  • Delayed Release Capsule: Pro-50 probiotics use a patented capsule, that protects the live organisms in the capsule from stomach acid, delivering more...
  • Potency & Purity Guaranteed: The capsule itself is a delayed-release vegetable capsule, with prebiotic greens. Developed in an NSF-certified facility.
  • Strains Include: Saccharomyces boulardii, Lactobacillus plantarum, Lactobacillus acidophilus, Bifidobacterium lactis, Lactobacillus brevis,...
SaleBestseller No. 2
Renew Life® Adult Probiotic - Ultimate Flora™ Saccharomyces boulardii Probiotic Supplement -...
  • SMARTER PROBIOTICS FOR ADULTS: Created for both men and women, this probiotic contains 6 billion live Saccharomyces boulardii cultures (500 mg) per...
  • HIGH-QUALITY GUARANTEE: Renew Life is rated the #1 probiotic brand in consumer satisfaction for 2018**, guaranteeing quality, purity and potency...
  • RELIEF OF OCCASIONAL DIARRHEA:* For both men and women, Renew Life Saccharomyces boulardii is a clinically studied probiotic for relief of occasional...
  • DIGESTIVE SUPPORT: Travel-friendly with convenient blister packs to help maintain healthy digestive balance on-the-go, Renew Life Saccharomyces...
  • SHELF STABLE PROBIOTIC: Refrigeration recommended but not required, so stick this probiotic supplement it in the fridge only if you want to!
Bestseller No. 3
Zhou S. Boulardii Probiotic 440 mg | Mens & Womens Probiotics | Shelf Stable Immune Support | 60...
  • Balance Your Gut. Widely used for its reputed ability to help repopulate the gut with good bacteria, saccharomyces boulardii, also known as S....
  • Survives Stomach Acid. S. boulardii is an acid resistant microorganism, meaning its not altered or destroyed by stomach acid. Formulated to give you...
  • Shelf Stable, Travel Ready. Most probiotics require refrigeration to stay potent. The saccharomyces boulardii probiotic is different. Because its a...
  • Your Foundation Of Wellness. It all starts in the gut. Research suggests that a healthy gut promotes the overall health of your brain and body. One of...
  • What Sets Us Apart? At Zhou, we use only the highest-quality ingredients in a facility following GMP (good manufacturing practices). Plus, we test...
Bestseller No. 4
Now Foods Supplements, Saccharomyces Boulardii, 5 Billion CFU Probiotic, 120 Veg Capsules
  • PROBIOTIC 5 BILLION CFU: Supports a healthy balance of intestinal flora
  • USEFUL WHEN TRAVELING: For occasional diarrhea
  • CERTIFICATIONS/CLASSIFICATIONS: Soy Free, Non-GMO, Vegan/Vegetarian, Nut Free, Gluten Free, Dairy Free, Egg Free, Keto Friendly, Kosher, Halal
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our...
  • Packaged in the USA by a family owned and operated company since 1968.
SaleBestseller No. 5
Pure TheraPro Rx Saccharomyces 10B - Saccharomyces Boulardii, 10 Billion CFU Per Serving, Patented...
  • SACCHAROMYCES BOULARDII PROBIOTIC: Saccharomyces is a patented & clinically studied strain that has been used for its regulatory effect on the...
  • NO FILLERS: We strive for optimal health. That's why our Saccharomyces Boulardii probiotics do not contain fillers, excipients, flow agents, or the...
  • NO REFRIGERATION NEEDED: Our patented Saccharomyces strain (DBVPG 6763) is stable at body temperature (98.6°F) for survival in gastric acids. It's...
  • CAN BE USED DAILY: Pure TheraPro Rx Saccharomyces probiotic capsules deliver a minimum of 10 billion colony-forming units per daily serving (250mg per...
  • ABOUT US: Pure TheraPro Rx was founded in Denver Colorado to formulate and manufacture the highest quality supplements available on the market today....
Bestseller No. 6
Klaire Labs Saccharomyces Boulardii - Probiotic Supplement to Help Support Healthy Yeast Balance,...
  • A powerful yeast probiotic supplied in a base of cellulose.
  • American Type Culture Collection (ATCC) certified and freeze-dried to maintain maximum strength and viability.*
  • This hardy species is acid-resistant and temperature tolerant.
  • Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans....
  • Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by...
Bestseller No. 7
Florastor Daily Probiotic Supplement for Women and Men, Proven to Support Digestive Health,...
  • Digestive and Immune Support: Florastor helps increase the natural flora in your digestive tract and supports overall health by strengthening your...
  • Daily Probiotic Supplement: Each capsule contains 250mg of our unique probiotic strain, which is larger and stronger than many other probiotics and...
  • Antibiotic Resistant: Our resilient probiotic formula thrives even during antibiotic use, with proven resistance to 16 of the most common oral...
  • The Probiotic of Choice: Florastor is the number 1 probiotic in its class around the world; We use a unique and effective probiotic strain with over...
  • Healthy Lifestyle: Florastor is made with ingredients that are vegetarian, gluten-free, titanium dioxide free and appropriate for lactose intolerance
Bestseller No. 8
Florastor Daily Probiotic Supplement for Women and Men, Proven to Support Digestive Health,...
  • Digestive and Immune Support: Florastor helps increase the natural flora in your digestive tract and supports overall health by strengthening your...
  • Daily Probiotic Supplement: Each capsule contains 250mg of our unique probiotic strain, which is larger and stronger than many other probiotics and...
  • Antibiotic Resistant: Our resilient probiotic formula thrives even during antibiotic use, with proven resistance to 16 of the most common oral...
  • The Probiotic of Choice: Florastor is the number 1 probiotic in its class around the world; We use a unique and effective probiotic strain with over...
  • Healthy Lifestyle: Florastor is made with ingredients that are vegetarian, gluten-free, titanium dioxide free and appropriate for lactose intolerance
Bestseller No. 9
Designs for Health Saccharomyces Boulardii Probiotic - FloraMyces 500mg Gut Health Supplements -...
  • DAIRY AND LACTOSE FREE - Unlike other products containing this organism, FloraMyces is free of dairy and lactose, making it a suitable probiotic for...
  • TEMPERATURE TOLERANT AND ACID RESISTANT - It is rare to find a quality probiotic that does not require refrigeration. This product is freeze-dried,...
  • HIGHER STANDARDS. BETTER RESULTS - Designs for Health maintains a strict, no-compromises approach to quality raw material selection. We never cut...
  • OVER 50,000 DOCTORS AGREE - Designs for Health is the physician's choice for top quality professional strength supplements since 1989. Our "Science...
  • #1 IN CONSUMER SATISFACTION - Designs for Health was voted #1 in Consumer Satisfaction in 2016 and 2017 in a Consumer Labs survey of Healthcare...
SaleBestseller No. 10
Jarrow Formulas Saccharomyces Boulardii + MOS - 5 Billion Viable Organisms Per Serving - 90 Delayed...
  • Intestinal Tract Support - Saccharomyces Boulardii + MOS is a clinically documented probiotic yeast that provides a synergistic effect in the...
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product...
  • Probiotic + Prebiotic - Saccharomyces boulardii (probiotic yeast) helps protect and maintain intestinal microflora & restore normal intestinal...
  • MOS - MOS is a prebiotic that encourages the clearance of certain bacteria through the gut. MOS is a binding site decoy for unfriendly bacteria.
  • 5 Billion CFU - Delivers a minimum of 5 billion viable cells at time of consumption (when kept under recommended storage conditions & used within Best...
Bestseller No. 11
DrFormulas Saccharomyces Boulardii Probiotic 10 Billion CFUs | Nexabiotic S boulardii, Immune and...
  • TOTAL INTESTINAL SUPPORT: Saccharomyces boulardii gives relief from antibiotic-associated diarrhea, Clostridium difficile infection, and traveler’s...
  • MORE EFFECTIVE: Nexabiotic Probiotic's protective stomach-acid resistant capsules are more effective than unprotected probiotic lyo powder, regular...
  • PROVEN DAILY DOSE: Doctors recommend 10 billion CFUs of probiotics to decrease the duration of diarrhea. You'll get 10 billion CFUs of S boulardii...
  • NO REFRIGERATION NEEDED: We use an advanced flash-freeze drying process which preserves Saccharomyces Boulardii probiotics for maximum effectiveness
  • MADE IN THE USA: All of our supplements are made in an FDA inspected GMP inspected facility, under NSF guidelines for quality assurance. Your safety...
Bestseller No. 12
RepHresh Pro-B Probiotic Supplement for Women, 30 Oral Capsules
  • Balances yeast and bacteria to maintain feminine health*
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product...
  • Just one capsule per day!
  • Clinically tested probiotic
  • #1 Trusted Brand
Bestseller No. 13
Thorne Sacro-B Probiotic - Enhances Immune Function in The Gut - 60 Capsules
  • Probiotic: Supports the growth of beneficial intestinal flora*
  • Immune Function: Supports immune function in the gut*
  • GI Tract: Increases secretory IgA, the body's first line of defense in the GI tract*
  • Diarrhea: Helpful for occasional diarrhea*
  • Free From: Every Thorne product is made with the purest possible ingredients - without gluten or other major allergens (eggs, tree nuts, peanuts)....
Bestseller No. 14
Pure Encapsulations - Saccharomyces Boulardii - Natural Probiotic to Balance Intestinal Flora - 60...
  • G.I. Health: Saccharomyces Boulardii is a non-pathogenic probiotic designed to nutritionally support the health of the gastrointestinal tract.*
  • Refrigerate: Pure Encapsulations probiotics can tolerate three to five days at room temperature without falling below label claim. The ice pack in the...
  • Healthy Gut Flora: Saccharomyces Boulardii helps to maintain a healthy balance of intestinal flora.*
  • Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then...
  • Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure...
SaleBestseller No. 15
DrFormulas' Best Probiotics for Women & Men | Nexabiotic Multi Probiotic with Saccharomyces...
  • ADVANCED - Nexabiotic is DrFormulas' best 23 strain multi probiotic containing Saccharomyces boulardii, Lactobacillus acidophilus and 21 other...
  • EFFECTIVE - Unlike unprotected capsules that dissolve in stomach acid, Nexabiotic's vegetarian plant-based Delayed Released Capsules ensure maximum...
  • SMALL & STRONG - Unlike hard to swallow pearls, each tiny easy to swallow capsule has 17.25 billion CFUs at the time of manufacture to support regular...
  • DIVERSE - Hardy soil based probiotic organisms, Lactobacillus and Bifidobacterium species, diarrhea shortening Lactobacillus acidophilus and...
  • SAFE - Nexabiotic Advanced Probiotics is made in the USA in a FDA inspected GMP NSF Facility. Your safety is our priority.
SaleBestseller No. 16
Digestive Enzymes 1000MG Plus Prebiotics & Probiotics Supplement, 180 Capsules, Organic Plant-Based...
  • Get Digestive Comfort Now – Ultra Strength 1000 MG Dose of clinical grade digestive enzymes and a 10 billion CFU 10 strain probiotic with...
  • Goodbye Hard-to-Digest Foods – This formula features our Advanced Multi Enzyme System to help you digest fried, spicy, raw, processed food, dairy,...
  • Relieve Gas, Belly Bloating / Bloat, Constipation, Leaky, Indigestion, Reflux, Belching & Acid Discomfort! Aid gut health, beauty, weight management,...
  • Complete digestive enzyme pills complex blend with essential organic blue agave heart, inulin, amylase / amilasa, papain, protease A, invertase,...
  • Proudly made in the USA in a GMP certified manufacturing facility, 3rd Party Tested, and a 100% satisfaction money back guarantee. If you are not...
SaleBestseller No. 17
NOW Supplements, Saccharomyces Boulardii,Probiotic 5 Billion CFU, 60 Veg Capsules
  • PROBIOTIC 5 BILLION CFU: Supports a healthy balance of intestinal flora*
  • USEFUL WHEN TRAVELING*: For occasional diarrhea*
  • CERTIFICATIONS/CLASSIFICATIONS: Soy Free, Non-GMO, Vegan/Vegetarian, Nut Free, Gluten Free, Dairy Free, Egg Free, Keto Friendly, Kosher, Halal
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our...
  • Packaged in the USA by a family owned and operated company since 1968
Bestseller No. 18
BioActive Vegan Vitamin B12 Sublingual Liquid Supplement - B12 Liquid Vitamin Drops with...
  • THREE-IN-ONE SUPPORT: BioActive Full Spectrum Vitamin B12 liquid is a premium quality liquid B12 complex utilizing three (3) bioavailable forms in one...
  • ADVANCED FORMULA: Containing a patented, biologically active form of Methylcobalamin (MecobalActive), a mitochondrial form of Adenosylcobalamin...
  • PREMIUM QUALITY: We never use fillers, excipients, or flow agents in our supplements, including our vegan B12 vitamin supplement. We always promise to...
  • FORMULATED AND PACKAGED IN THE USA: Formulated and packaged in NSF-certified facilities right here in the USA, our third-party tested non-GMO...
  • ABOUT US: At Pure TheraPro Rx, we realized that most of the supplements people were taking were highly ineffective and a waste of time and money. We...
Bestseller No. 19
Jarrow Formulas Saccharomyces Boulardii + MOS - 5 Billion Viable Organisms Per Serving - 90 Delayed...
  • Intestinal Tract Support - Saccharomyces Boulardii + MOS is a clinically documented probiotic yeast that provides a synergistic effect in the...
  • Probiotic + Prebiotic - Saccharomyces boulardii (probiotic yeast) helps protect and maintain intestinal microflora & restore normal intestinal...
  • MOS - MOS is a prebiotic that encourages the clearance of certain bacteria through the gut. MOS is a binding site decoy for unfriendly bacteria.
  • 5 Billion CFU - Delivers a minimum of 5 billion viable cells at time of consumption (when kept under recommended storage conditions & used within Best...
  • Rated #1 - With innovative, science-based probiotic products that consumers trust, Jarrow Formulas has again been recognized as the #1 probiotic brand...
SaleBestseller No. 20
Florastor Kids Daily Probiotic Supplement, Tutti-Frutti Flavor Powder Mixes with Food or Beverage,...
  • Product Type:Health Personal Care
  • Item Package Quantity:1
  • Healthy Lifestyle: Florastor Helps Kids Absorb Water And Nutrients So They Stay Hydrated And Energized! Made With Ingredients That Are Vegetarian,...
  • Country Of Origin: United States

Having trouble finding a great saccharomyces boulardii acne?

This problem is well understood by us because we have gone through the entire saccharomyces boulardii acne research process ourselves, which is why we have put together a comprehensive list of the best saccharomyces boulardii acnes available in the market today.

After hours of searching and using all the models on the market, we have found the best saccharomyces boulardii acne for 2023. See our ranking below!

How Do You Buy The Best Saccharomyces Boulardii Acne?

Do you get stressed out thinking about shopping for a great saccharomyces boulardii acne? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching saccharomyces boulardii acne, which is why we have assembled a comprehensive list of the greatest saccharomyces boulardii acne available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for saccharomyces boulardii acne that you consider buying. Your questions might include the following:

  • Is it worth buying an saccharomyces boulardii acne?
  • What benefits are there with buying an saccharomyces boulardii acne?
  • What factors deserve consideration when shopping for an effective saccharomyces boulardii acne?
  • Why is it crucial to invest in any saccharomyces boulardii acne, much less the best one?
  • Which saccharomyces boulardii acne are good in the current market?
  • Where can you find information like this about saccharomyces boulardii acne?

We’re convinced that you likely have far more questions than just these regarding saccharomyces boulardii acne, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for saccharomyces boulardii acne, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible saccharomyces boulardii acne. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an saccharomyces boulardii acne buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available saccharomyces boulardii acne currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of saccharomyces boulardii acne has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an saccharomyces boulardii acne?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your saccharomyces boulardii acne.
  5. Customer Ratings: Number ratings grade saccharomyces boulardii acne objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their saccharomyces boulardii acne.
  7. Product Quality: You don’t always get what you pay for with an saccharomyces boulardii acne, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an saccharomyces boulardii acne is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining saccharomyces boulardii acne information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding saccharomyces boulardii acne is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Is Saccharomyces boulardii any good?

A: Saccharomyces Boulardii is a pharmaceutical-grade brewer’s yeast that’s used for treating/killing candida and other gut issues. It also supports healthy skin! I highly recommend this stuff for anyone with acne looking for a good probiotic supplement to add to their diet. Klaire Labs makes a really good one.

Q: How long does Saccharomyces boulardii take to work?

A: 7-14 days treatment with S. boulardii is effective at preventing diarrhea caused by antibiotics. Saccharomyces boulardii may help reduce the side effects of standard triple therapy (which includes antibiotics) for H. pylori infections. When taken in advance and regularly while travelling, Saccharomyces boulardii can prevent traveller’s diarrhea.

Q: Why are boulardiidoes so successful as probiotics?

A: S. boulardiidoes possess discernible phenotypic traits and physiological properties that underlie its success as probiotic, such as optimal growth temperature, resistance to the gastric environment and viability at low pH.

Q: Is Saccharomyces cerevisiae a distinct species?

A: It is genetically close to the model yeast Saccharomyces cerevisiae and its classification as a distinct species or a S. cerevisiae variant has long been di … Saccharomyces boulardii: What Makes It Tick as Successful Probiotic?