Kirkland Signature Kirkland Signature One Per Day Super B-complex With Electrolytes,500 Tablets supplement bottle
Kirkland Signature

Kirkland Signature One Per Day Super B-complex With Electrolytes,500 Tablets

What We Researched
9 active ingredients analyzed · 10 inactive ingredients decoded · 6 brand certifications checked · Last updated: Mar 2026
57
Product Score Poor
82
Brand Score Good

Product Analysis

Transparency Very Poor

Supplement Facts

IngredientAmount% DV
Ascorbic Acid
Thiamin Mononitrate
Niacinamide
Riboflavin
d-Calcium Pantothenate
Pyridoxine Hydrochloride
Folic Acid
d-Biotin
Cyanocobalamin
Bioavailability Good

Absorption Rating

  • Ascorbic Acid Fair
  • Thiamin Mononitrate Fair
  • Niacinamide Good
  • Riboflavin Good
  • d-Calcium Pantothenate Good
  • Pyridoxine Hydrochloride Fair
  • Folic Acid Fair
  • d-Biotin Good
  • Cyanocobalamin Fair
Other Ingredients Excellent

Fillers & Additives

  • Sodium Chloride
  • Cellulose (Plant Origin)
  • Potassium Chloride
  • Dicalcium Phosphate
  • Croscarmellose Sodium
  • Silicon Dioxide
  • Mannibil
  • Magnesium Stearate
  • Cellulose Coating
  • Carnauba Wax
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Supplement Facts

Ingredient Amount % Daily Value
Ascorbic Acid
Thiamin Mononitrate
Niacinamide
Riboflavin
d-Calcium Pantothenate
Pyridoxine Hydrochloride
Folic Acid
d-Biotin
Cyanocobalamin

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Sodium Chloride Safe

Provides sodium, stabilizes formulations.

Cellulose (Plant Origin) Safe

It is used as a filler, binder, or thickener.

Potassium Chloride Safe

It is used to provide potassium, an essential mineral.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Mannibil Unknown
Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Cellulose Coating Generally_safe

It is used to coat tablets or capsules for easier swallowing or to control release.

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Brand Trust Report
Kirkland Signature

Founded 1995 · Issaquah, Washington, United States · 26 products · costco.com/kirkland-signature.html

Certifications

6 certifications
Consumerlab Verified
Non Gmo Project Verified
Usda Organic Verified
Usp Verified Verified Source
Gluten Free Gfco Verified
Vegan Certified Verified

Transparency

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

Violation History

3 incidents
Lawsuit Falsely advertising rotisserie chicken as containing 'no preservatives'2026Source
Recall Kirkland Signature B100 Complex Timed Release2025-03-31Source
Recall Kirkland Signature Severe Cold and Flu Plus Congestion2024-11-30Source
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Frequently Asked Questions
Is Kirkland Signature Kirkland Signature One Per Day Super B-complex With Electrolytes,500 Tablets a good supplement?

Kirkland Signature Kirkland Signature One Per Day Super B-complex With Electrolytes,500 Tablets received a product quality score of 57/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 9 active ingredients Of the 10 inactive ingredients, 8 are rated safe and 0 are flagged for review. The manufacturer, Kirkland Signature, holds a brand trust score of 82/100 with 6 verified certifications including Consumerlab, Non Gmo Project, Usda Organic, Usp Verified.

What are the ingredients in Kirkland Signature Kirkland Signature One Per Day Super B-complex With Electrolytes,500 Tablets?

Kirkland Signature Kirkland Signature One Per Day Super B-complex With Electrolytes,500 Tablets contains 9 active ingredients: Ascorbic Acid, Thiamin Mononitrate, Niacinamide, Riboflavin, d-Calcium Pantothenate, Pyridoxine Hydrochloride, and 3 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Kirkland Signature Kirkland Signature One Per Day Super B-complex With Electrolytes,500 Tablets safe to take?

Kirkland Signature Kirkland Signature One Per Day Super B-complex With Electrolytes,500 Tablets 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 Kirkland Signature a trustworthy supplement brand?

Kirkland Signature receives a brand trust score of 82/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1995 and headquartered in Issaquah, Washington, United States, the company offers 26 products in their lineup. They hold 6 verified certifications including Consumerlab, Non Gmo Project, Usda Organic, Usp Verified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Kirkland Signature has 3 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. 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.