Life Extension Bone Restore, Calcium Supplement with Vitamin K2, 120 Capsules supplement bottle
Life Extension

Bone Restore, Calcium Supplement with Vitamin K2, 120 Capsules

What We Researched
9 active ingredients analyzed · 6 inactive ingredients decoded · 3 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
81
Product Score Good
86
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as ascorbyl palmitate) 48 mg 53%
Vitamin D3 (as cholecalciferol) (1000 IU) 25 mcg 125%
Calcium (as carbonate, citrate malate, bisglycinate, fructoborate) 700 mg 54%
Magnesium (as magnesium oxide) 300 mg 71%
Zinc (as zinc amino acid chelate) 2 mg 18%
Manganese (as manganese amino acid chelate) 1 mg 43%
Silicon [from horsetail extract (herb)] 5 mg **
Boron (calcium fructoborate as patented Fruitex B® OsteoBoron®) 3 mg **
Vitamin K2 (as trans menaquinone-7) 200 mcg **
Bioavailability Good

Absorption Rating

  • Vitamin C (as ascorbyl palmitate) Fair
  • Vitamin D3 (as cholecalciferol) (1000 IU) Good
  • Calcium (as carbonate, citrate malate, bisglycinate, fructoborate) Good
  • Magnesium (as magnesium oxide) Poor
  • Zinc (as zinc amino acid chelate) Fair
  • Manganese (as manganese amino acid chelate) Good
  • Silicon [from horsetail extract (herb)] Fair
  • Boron (calcium fructoborate as patented Fruitex B® OsteoBoron®) Good
  • Vitamin K2 (as trans menaquinone-7) Good
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Cellulose (Capsule)
  • Stearic Acid
  • Maltodextrin
  • Microcrystalline Cellulose
  • Silica
  • Food Starch-Modified
Efficacy Fair

Dosage Analysis

  • Vitamin C (as ascorbyl palmitate) 48 mg Under-dosed
  • Vitamin D3 (as cholecalciferol) (1000 IU) 25 mcg Effective
  • Calcium (as carbonate, citrate malate, bisglycinate, fructoborate) 700 mg Effective
  • Magnesium (as magnesium oxide) 300 mg Effective
  • Zinc (as zinc amino acid chelate) 2 mg Under-dosed
  • Manganese (as manganese amino acid chelate) 1 mg Under-dosed
  • Silicon [from horsetail extract (herb)] 5 mg Under-dosed
  • Boron (calcium fructoborate as patented Fruitex B® OsteoBoron®) 3 mg Effective
  • Vitamin K2 (as trans menaquinone-7) 200 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as ascorbyl palmitate) 48 mg 53%
Vitamin D3 (as cholecalciferol) (1000 IU) 25 mcg 125%
Calcium (as carbonate, citrate malate, bisglycinate, fructoborate) 700 mg 54%
Magnesium (as magnesium oxide) 300 mg 71%
Zinc (as zinc amino acid chelate) 2 mg 18%
Manganese (as manganese amino acid chelate) 1 mg 43%
Silicon [from horsetail extract (herb)] 5 mg **
Boron (calcium fructoborate as patented Fruitex B® OsteoBoron®) 3 mg **
Vitamin K2 (as trans menaquinone-7) 200 mcg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Cellulose (Capsule) Safe

It is used as a material for making vegetarian capsules.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Microcrystalline Cellulose Safe

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

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Food Starch-Modified Generally_safe

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

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$20$19$18$17$16 Mar 12 $18.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Life Extension

Founded 1980 · Fort Lauderdale, Florida, USA · 352 products · lifeextension.com

Certifications

3 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source

Transparency

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

Violation History

2 incidents
Prop 65 Lead2018-04-13Source
Fda Warning Making drug claims for dietary supplements, suggesting they can treat, mitigate, or prevent diseases such as breast cancer and Alzheimer's.2017-02-01Source
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Frequently Asked Questions
Is Life Extension Bone Restore, Calcium Supplement with Vitamin K2 a good supplement?

Life Extension Bone Restore, Calcium Supplement with Vitamin K2, 120 Capsules received a product quality score of 81/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 9 active ingredients with 30 servings per container. Of the 6 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Life Extension, holds a brand trust score of 86/100 with 3 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp.

What are the ingredients in Life Extension Bone Restore, Calcium Supplement with Vitamin K2?

Life Extension Bone Restore, Calcium Supplement with Vitamin K2 contains 9 active ingredients: Vitamin C (as ascorbyl palmitate) (48 mg), Vitamin D3 (as cholecalciferol) (1000 IU) (25 mcg), Calcium (as carbonate, citrate malate, bisglycinate, fructoborate) (700 mg), Magnesium (as magnesium oxide) (300 mg), Zinc (as zinc amino acid chelate) (2 mg), Manganese (as manganese amino acid chelate) (1 mg), and 3 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Life Extension Bone Restore, Calcium Supplement with Vitamin K2 safe to take?

Life Extension Bone Restore, Calcium Supplement with Vitamin K2, 120 Capsules 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 Life Extension a trustworthy supplement brand?

Life Extension receives a brand trust score of 86/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1980 and headquartered in Fort Lauderdale, Florida, USA, the company offers 352 products in their lineup. They hold 3 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Life Extension has 2 historical regulatory incidents on record, which are factored into the trust score.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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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.