NOW Methyl B-12, 1,000 mcg supplement bottle
NOW

Methyl B-12, 1,000 mcg Review

What We Researched
1 active ingredient analyzed · 7 inactive ingredients decoded · 9 brand certifications checked · Last updated: Aug 2026
100
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
Vitamin B-12(as Methylcobalamin) (1,000 mcg) 1 mg 41,667%
Bioavailability Excellent

Absorption Rating

  • Vitamin B-12(as Methylcobalamin) (1,000 mcg) Good
Other Ingredients Excellent

Fillers & Additives

  • Xylitol
  • Hydroxypropyl Cellulose
  • Microcrystalline Cellulose
  • Citric Acid
  • Stearic Acid (Vegetable Source)
  • Natural Flavors
  • Organic stevia leaf extract (enzyme-modified steviol glycosides) and organic monk fruit extract
Efficacy Excellent

Dosage Analysis

  • Vitamin B-12(as Methylcobalamin) (1,000 mcg) 1 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin B-12(as Methylcobalamin) (1,000 mcg) 1 mg 41,667%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Xylitol Safe

Provides sweetness with reduced calorie content. Does not promote tooth decay.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Microcrystalline Cellulose Safe

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

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Stearic Acid (Vegetable Source) Generally_safe

It is used as a lubricant and release agent.

Natural Flavors Safe

Improves taste of chewable, gummy, or liquid supplements.

Organic stevia leaf extract (enzyme-modified steviol glycosides) and organic monk fruit extract Unknown
Brand Trust Report
NOW

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

Certifications

9 certifications
Informed Sport Verified Source
Npa Gmp Verified Source
Consumerlab Verified Source
Labdoor Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source
Informed Choice Verified

Transparency

5 claims
Coa Availability — Verified Source
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed
In House Testing — Verified Source

Violation History

8 incidents
Lawsuit Mislabeled St. John's Wort supplement, containing significantly less of the active ingredient than advertised.NoneSource
Lawsuit A data breach that compromised personal and health information of employees and dependents.2023Source
Prop 65 Lead2021-11-30Source
Recall NOW Real Food® Raw Macadamia Nuts2020-06-12Source
Recall NOW Real Food® Raw Macadamia Nuts2020-06-12Source
Recall NOW Real Food® Zesty Sprouting Mix2018-06-21Source
Lawsuit Misleadingly using slack-fill packaging for their Vitamin C supplements.2015Source
Fda Warning Adulterated Dietary Supplement due to pesticide (quintozene) contamination in American Ginseng.2007-10-12Source
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Frequently Asked Questions
Is NOW Methyl B-12, 1 a good supplement?

NOW Methyl B-12, 1,000 mcg received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients Of the 7 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, NOW, holds a brand trust score of 100/100 with 9 verified certifications including Informed Sport, Npa Gmp, Consumerlab, Labdoor.

What are the ingredients in NOW Methyl B-12, 1?

NOW Methyl B-12, 1 contains 1 active ingredients: Vitamin B-12(as Methylcobalamin) (1,000 mcg) (1 mg). Notable high-dose ingredients include Vitamin B-12 at 41,667% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NOW Methyl B-12, 1 safe to take?

NOW Methyl B-12, 1,000 mcg 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 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. They hold 9 verified certifications including Informed Sport, Npa Gmp, Consumerlab, Labdoor. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: NOW has 8 historical regulatory incidents on record, which are factored into the trust score.

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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.