Klaire Labs B12 Liquid 5,000 mcg supplement bottle
Klaire Labs

B12 Liquid 5,000 mcg Review

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 2 brand certifications checked · Last updated: Aug 2026
93
Product Score Excellent
75
Brand Score Fair

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 B12 (as Methylcobalamin) 5000 mcg 208333%
Bioavailability Excellent

Absorption Rating

  • Vitamin B12 (as Methylcobalamin) Good
Other Ingredients Excellent

Fillers & Additives

  • Water
  • Glycerin
  • Cranberry flavoring
  • Cinnamon Flavoring
  • Ionic copper solution
Efficacy Very Good

Dosage Analysis

  • Vitamin B12 (as Methylcobalamin) 5000 mcg High

Supplement Facts

Ingredient Amount % Daily Value
Vitamin B12 (as Methylcobalamin) 5000 mcg 208333%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Water Safe

Dissolves and carries water-soluble ingredients.

Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Cranberry flavoring Unknown
Cinnamon Flavoring Unknown
Ionic copper solution Unknown
Brand Trust Report
Klaire Labs

Founded 1969 · Reno, Nevada, United States · 82 products · klaire.com

Certifications

2 certifications
Fda Gmp Inspections Verified Source
Usda Organic Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
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Frequently Asked Questions
Is Klaire Labs B12 Liquid 5,000 mcg a good supplement?

Klaire Labs B12 Liquid 5,000 mcg 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 120 servings per container. Of the 5 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Klaire Labs, holds a brand trust score of 75/100 with 2 verified certifications including Fda Gmp Inspections, Usda Organic.

What are the ingredients in Klaire Labs B12 Liquid 5,000 mcg?

Klaire Labs B12 Liquid 5,000 mcg contains 1 active ingredients: Vitamin B12 (as Methylcobalamin) (5000 mcg). Notable high-dose ingredients include Vitamin B12 at 208333% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Klaire Labs B12 Liquid 5,000 mcg safe to take?

Klaire Labs B12 Liquid 5,000 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 Klaire Labs a trustworthy supplement brand?

Klaire Labs receives a brand trust score of 75/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1969 and headquartered in Reno, Nevada, United States, the company offers 82 products in their lineup. They hold 2 verified certifications including Fda Gmp Inspections, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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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.