Dr. Mercola Biothin® Probiotic, Lactobacillus Gasseri, 250 mg (10 Billion CFU), 30 Capsules supplement bottle
Dr. Mercola

Biothin® Probiotic, Lactobacillus Gasseri, 250 mg (10 Billion CFU), 30 Capsules

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 4 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
93
Product Score Excellent
81
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Lactobacillus gasseri BNR17™ (10 Billion CFU) 250 mg *
Bioavailability Excellent

Absorption Rating

  • Lactobacillus gasseri BNR17™ (10 Billion CFU) Good
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Delayed release capsule (hydroxypropyl methylcellulose, gellan gum)
  • Fructooligosaccharides
  • Ascorbyl Palmitate
  • Silicon Dioxide
Efficacy Very Good

Dosage Analysis

  • Lactobacillus gasseri BNR17™ (10 Billion CFU) 250 mg High

Supplement Facts

Ingredient Amount % Daily Value
Lactobacillus gasseri BNR17™ (10 Billion CFU) 250 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Delayed release capsule (hydroxypropyl methylcellulose, gellan gum) Unknown
Fructooligosaccharides Generally_safe

They can be used as a filler and to promote gut health.

Ascorbyl Palmitate Safe

Prevents oxidation and extends shelf life of oil-based supplements.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$36$35$34$33$32 Mar 12 $34.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Dr. Mercola

Founded 1997 · Cape Coral, Florida, USA · 209 products · mercola.com/

Certifications

4 certifications
Consumerlab Verified Source
Nsf Gmp Verified Source
Usda Organic Verified Source
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Verified Source

Violation History

7 incidents
Prop 65 Lead2025-04-18Source
Lawsuit Wrongful termination and breach of a severance contract by the former CEO.2024Source
Fda Warning Unapproved and misbranded products related to Coronavirus Disease 2019 (COVID-19).2021-02-18Source
Lawsuit False and unsupported claims that its indoor tanning systems are safe and do not increase the risk of skin cancer.2016Source
Fda Warning Illegal marketing of a medical device.2011-01-01Source
Fda Warning Illegal drug claims for various supplements.2006-01-01Source
Fda Warning Illegal drug claims for various supplements.2005-01-01Source
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Frequently Asked Questions
Is Dr. Mercola Biothin® Probiotic, Lactobacillus Gasseri a good supplement?

Dr. Mercola Biothin® Probiotic, Lactobacillus Gasseri, 250 mg (10 Billion CFU), 30 Capsules received a product quality score of 93/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 30 servings per container. Of the 5 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, Dr. Mercola, holds a brand trust score of 81/100 with 4 verified certifications including Consumerlab, Nsf Gmp, Usda Organic, Fda Gmp Inspections.

What are the ingredients in Dr. Mercola Biothin® Probiotic, Lactobacillus Gasseri?

Dr. Mercola Biothin® Probiotic, Lactobacillus Gasseri contains 1 active ingredients: Lactobacillus gasseri BNR17™ (10 Billion CFU) (250 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Dr. Mercola Biothin® Probiotic, Lactobacillus Gasseri safe to take?

Dr. Mercola Biothin® Probiotic, Lactobacillus Gasseri, 250 mg (10 Billion CFU), 30 Capsules has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Dr. Mercola a trustworthy supplement brand?

Dr. Mercola receives a brand trust score of 81/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1997 and headquartered in Cape Coral, Florida, USA, the company offers 209 products in their lineup. They hold 4 verified certifications including Consumerlab, Nsf Gmp, Usda Organic, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Dr. Mercola has 7 historical regulatory incidents on record, which are factored into the trust score.

Do probiotics make you poop?

The effects of supplements on the body vary based on the specific ingredients, dosages, and individual factors. Quality clinical research is the best guide for understanding what supplements actually do versus marketing claims. Be cautious of products that promise dramatic results — legitimate supplements support health gradually, not overnight. Checking the ingredient label, understanding the dosages, and reviewing the scientific evidence are essential steps before starting any supplement. GoodSupp evaluates over 250,000 products based on published research and evidence-based criteria.

What are probiotics good for?

Probiotics Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding probiotics good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

Do probiotics help with constipation?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.