🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Vegetarian Capsule(s) Serving Size
110 Servings
Vitamin Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

100 mcg
✅ Within RDA (0.8× RDA of 0.12 mg) 📚 273 studies (Tier A: 9, B: 175)
RDA 0.12mg This product: 0.1mg

Other Ingredients

Cellulose Oat Fiber Dicalcium Phosphate Magnesium Silicate Magnesium Stearate Silicon Dioxide

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (100% of products) Structure/Function (84% of products) Nutrient (73% of products)

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: As a vitamin supplement, adults take one (1) capsule daily with any meal or as directed by a healthcare provider. Do not exceed recommended dosage. Individual results may vary.

⚠️ Warnings & Precautions

Do not exceed recommended dosage.

Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, especially anti-coagulants, have a medical condition or are planning a medical procedure.

Stop use and contact a physician if adverse reactions occur. Do not use if product appears to be tampered with or seal is broken.

Keep out of reach of children.

Contains less than 2% of: Silicon Dioxide.

🧪 Formulation Notes

Bone health & cardiovascular support

Gluten free Non-GMO

Guaranteed quality laboratory tested Trusted quality for over 30 years

Vitamin K2, the most active form of vitamin K, supports the formation of healthy bones and cardiovascular health.

No added sugar, salt, yeast, artificial flavors or colors.

Suitable for vegans.

Additional Information

Store at room temperature.

New

Product Details

UPC / SKU 7 40985 28067 6
DSLD Entry Date 2024-01-24
Product Type Vitamin
Form Capsule
Brand 21st Century
DSLD ID 304109
Data Updated 2026-04-11

Research Evidence

332 Research Sources
59 Avg Quality Score
220 Meta Analysis
56 Systematic Review
30 Rct
16 Clinical Trial
3 Guideline
3 Regulatory Source
1 Narrative Review
1 Other
1 Openfda Safety
A Duration of treatment with vitamin K antagonists in symptomatic venous thromboembolism
Meta Analysis The Cochrane database of systematic reviews 2014
A Antiplatelet and anticoagulant agents for secondary prevention of stroke and other thromboembolic events in people with antiphospholipid syndrome
Meta Analysis The Cochrane database of systematic reviews 2017
A Anticoagulants (extended duration) for prevention of venous thromboembolism following total hip or knee replacement or hip fracture repair
Meta Analysis The Cochrane database of systematic reviews 2016
A Antiplatelet and anticoagulant agents for secondary prevention of stroke and other thromboembolic events in people with antiphospholipid syndrome
Meta Analysis The Cochrane database of systematic reviews 2020
A Direct factor Xa inhibitors versus low molecular weight heparins or vitamin K antagonists for prevention of venous thromboembolism in elective primary hip or knee replacement or hip fracture repair
Meta Analysis The Cochrane database of systematic reviews 2025
A Factor Xa inhibitors versus vitamin K antagonists for preventing cerebral or systemic embolism in patients with atrial fibrillation
Meta Analysis The Cochrane database of systematic reviews 2018
A Antiplatelet agents and anticoagulants for hypertension
Systematic Review The Cochrane database of systematic reviews 2022
A Primary prophylaxis for venous thromboembolism in ambulatory cancer patients receiving chemotherapy
Meta Analysis The Cochrane database of systematic reviews 2012
A Factor Xa inhibitors versus vitamin K antagonists for preventing cerebral or systemic embolism in patients with atrial fibrillation
Meta Analysis The Cochrane database of systematic reviews 2013
A Anticoagulation for the long-term treatment of venous thromboembolism in patients with cancer
Meta Analysis The Cochrane database of systematic reviews 2014
View all evidence for Vitamin K →

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