Barlean's D3+K2 Liquid Supplement supplement bottle
Barlean's

D3+K2 Liquid Supplement Review

What We Researched
2 active ingredients analyzed · 12 inactive ingredients decoded · 5 brand certifications checked · Last updated: Aug 2026
96
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 D3 5000 IU —
Vitamin K2 90 mcg —
Bioavailability Excellent

Absorption Rating

  • Vitamin D3 Good
  • Vitamin K2 Good
Other Ingredients Excellent

Fillers & Additives

  • High oleic (Omega-9) sunflower oil
  • Water
  • Xylitol
  • Glycerine
  • Gum Arabic
  • Natural Flavors
  • Vegetable juice (for color
  • Citric Acid
  • Xanthan Gum
  • Antioxidant blend (Vitamin E (as d-alpha tocopherol) and rosemary extract
  • Guar Gum
  • Sorbic Acid
Efficacy Very Good

Dosage Analysis

  • Vitamin D3 5000 IU High
  • Vitamin K2 90 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D3 5000 IU
Vitamin K2 90 mcg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

High oleic (Omega-9) sunflower oil Unknown
Water Safe

Dissolves and carries water-soluble ingredients.

Xylitol Safe

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

Glycerine Generally_safe

It is used to dissolve ingredients, retain moisture, and add sweetness.

Gum Arabic Safe

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

Natural Flavors Safe

Improves taste of chewable, gummy, or liquid supplements.

Vegetable juice (for color Unknown
Citric Acid Safe

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

Xanthan Gum Safe

Thickens and stabilizes liquid and semi-solid supplements.

Antioxidant blend (Vitamin E (as d-alpha tocopherol) and rosemary extract Unknown
Guar Gum Safe

Thickens and provides fiber in supplement formulations.

Sorbic Acid Generally_safe

It is used as a preservative to prevent the growth of mold and yeast.

Brand Trust Report
Barlean's

Founded 1989 · Ferndale, Washington, USA · 123 products · barleans.com/

Certifications

5 certifications
Consumerlab Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source
IGEN Non-GMO Tested Verified

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
Coa Availability — True

Violation History

2 incidents
Prop 65 Lead2018-07-17Source
Lawsuit False advertising, unsubstantiated health claims, and failure to disclose lead content in violation of California's Proposition 65 for its Greens Supplement Powders.2018Source
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Frequently Asked Questions
Is Barlean's D3+K2 Liquid Supplement a good supplement?

Barlean's D3+K2 Liquid Supplement received a product quality score of 96/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients Of the 12 inactive ingredients, 7 are rated safe and 0 are flagged for review. The manufacturer, Barlean's, holds a brand trust score of 100/100 with 5 verified certifications including Consumerlab, Non Gmo Project, Usda Organic, Vegan Certified.

What are the ingredients in Barlean's D3+K2 Liquid Supplement?

Barlean's D3+K2 Liquid Supplement contains 2 active ingredients: Vitamin D3 (5000 IU), Vitamin K2 (90 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Barlean's D3+K2 Liquid Supplement safe to take?

Barlean's D3+K2 Liquid Supplement 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 Barlean's a trustworthy supplement brand?

Barlean's receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1989 and headquartered in Ferndale, Washington, USA, the company offers 123 products in their lineup. They hold 5 verified certifications including Consumerlab, Non Gmo Project, Usda Organic, Vegan Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Barlean's has 2 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.