Natural Factors Natural Factors Ultimate Multi Probiotic 12 Billion, 12-Strain Formula, 60 Vegetarian Capsules, With Added Prebiotic for Long-Lasting Action, Restores Intestinal Balance, Proudly Canadian supplement bottle
Natural Factors

Natural Factors Ultimate Multi Probiotic 12 Billion, 12-Strain Formula, 60 Vegetarian Capsules, With Added Prebiotic for Long-Lasting Action, Restores Intestinal Balance, Proudly Canadian

What We Researched
· 7 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
66
Product Score Fair
88
Brand Score Good

Product Analysis

Transparency Fair

Supplement Facts

No supplement facts data available.

Bioavailability N/A

Absorption Rating

No ingredient forms matched our reference database.

Other Ingredients Excellent

Fillers & Additives

  • Vegetarian Capsule (Carbohydrate Gum [Cellulose], Purified Water)
  • Maltodextrin
  • Fructooligosaccharides (FOS)
  • Inulin
  • Vegetable grade magnesium stearate (lubricant)
  • Silica
  • Ascorbic Acid
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetarian Capsule (Carbohydrate Gum [Cellulose], Purified Water) Safe

It provides a vegetarian encapsulation option.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Fructooligosaccharides (FOS) Generally_safe

It is used as a prebiotic to promote gut health or as a filler.

Inulin Safe

It is used as a prebiotic fiber and to add bulk to supplements.

Vegetable grade magnesium stearate (lubricant) Unknown
Silica Safe

Prevents ingredients from clumping and improves powder flow.

Ascorbic Acid Safe

Prevents oxidation and provides vitamin C.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$26$25$24$23$22 Mar 12 $23.97
Amazon_Ca

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

Brand Trust Report
Natural Factors

Founded 1950 · Coquitlam, British Columbia, Canada · 390 products · naturalfactors.com

Certifications

5 certifications
B Corp Certified Verified Source
Usp Verified Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

5 incidents
Prop 65 Lead2025-10-31Source
Recall Hi Potency B Complex, RevitalX, Super Multi® IRON FREE2024-07-19Source
Lawsuit Products labeled as containing glucosamine sulfate did not contain the ingredient.2021Source
Prop 65 Lead2016-01-13Source
Recall Natural Factors L-Arginine 500mg2006-04-05Source
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Frequently Asked Questions
Is Natural Factors Natural Factors Ultimate Multi Probiotic 12 Billion, 12-Strain Formula a good supplement?

Natural Factors Natural Factors Ultimate Multi Probiotic 12 Billion, 12-Strain Formula, 60 Vegetarian Capsules, With Added Prebiotic for Long-Lasting Action, Restores Intestinal Balance, Proudly Canadian received a product quality score of 66/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. Of the 7 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Natural Factors, holds a brand trust score of 88/100 with 5 verified certifications including B Corp Certified, Usp Verified, Fda Gmp Inspections, Non Gmo Project.

Is Natural Factors Natural Factors Ultimate Multi Probiotic 12 Billion, 12-Strain Formula safe to take?

Natural Factors Natural Factors Ultimate Multi Probiotic 12 Billion, 12-Strain Formula, 60 Vegetarian Capsules, With Added Prebiotic for Long-Lasting Action, Restores Intestinal Balance, Proudly Canadian 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 Natural Factors a trustworthy supplement brand?

Natural Factors receives a brand trust score of 88/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1950 and headquartered in Coquitlam, British Columbia, Canada, the company offers 390 products in their lineup. They hold 5 verified certifications including B Corp Certified, Usp Verified, Fda Gmp Inspections, Non Gmo Project. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Natural Factors has 5 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.