NOW Acidophilus Two Billion supplement bottle
NOW

Acidophilus Two Billion Review

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · 9 brand certifications checked · Page generated: Sep 2026
93
Product Score Excellent
100
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Lactobacillus acidophilus 2000000000 CFU †
Bioavailability Excellent

Absorption Rating

  • Lactobacillus acidophilus Good
Other Ingredients Excellent

Fillers & Additives

  • Maltodextrin
Efficacy Very Good

Dosage Analysis

  • Lactobacillus acidophilus 2000000000 CFU High

Supplement Facts

Ingredient Amount % Daily Value
Lactobacillus acidophilus 2000000000 CFU †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Brand Trust Report
NOW

Founded 1968 · Bloomingdale, Illinois, USA · 1759 products · nowfoods.com

Certifications

9 certifications
Informed Sport Source available Primary evidence
Npa Gmp Source available Primary evidence
Consumerlab Source available Primary evidence
Labdoor Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
Non Gmo Project Source available Primary evidence
Usda Organic Source available Primary evidence
Vegan Certified Source available Primary evidence
Informed Choice Supporting evidence unavailable

Transparency

5 claims
Coa Availability — Verified Evidence available Evidence
Third Party Testing Claim — Verified Evidence available Evidence
Testing Lab Disclosure — Claimed Brand claim; evidence unavailable
In House Testing — Verified Evidence available Evidence

Violation History

8 incidents
Lawsuit Mislabeled St. John's Wort supplement, containing significantly less of the active ingredient than advertised.None Source available Primary source
Lawsuit A data breach that compromised personal and health information of employees and dependents.2023 Source available Primary source
Prop 65 Lead2021-11-30 Source available Primary source
Recall NOW Real Food® Raw Macadamia Nuts2020-06-12 Source available Primary source
Recall NOW Real Food® Raw Macadamia Nuts2020-06-12 Source available Primary source
Recall NOW Real Food® Zesty Sprouting Mix2018-06-21 Source available Primary source
Lawsuit Misleadingly using slack-fill packaging for their Vitamin C supplements.2015 Source available Primary source
Fda Warning Adulterated Dietary Supplement due to pesticide (quintozene) contamination in American Ginseng.2007-10-12 Source available Primary source
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Frequently Asked Questions
Is NOW Acidophilus Two Billion a good supplement?

NOW Acidophilus Two Billion 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 113 servings per container. All 1 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, NOW, holds a brand trust score of 100/100.

What are the ingredients in NOW Acidophilus Two Billion?

NOW Acidophilus Two Billion contains 1 active ingredients: Lactobacillus acidophilus (2000000000 CFU). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NOW Acidophilus Two Billion safe to take?

GoodSupp reviewed the inactive-ingredient data available for NOW Acidophilus Two Billion. All 1 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NOW a trustworthy supplement brand?

NOW receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1968 and headquartered in Bloomingdale, Illinois, USA, the company offers 1759 products in their lineup. Note: NOW has 8 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 150,000 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 150,000 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 150,000 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 — read our methodology. 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.