Bone Builder Ultra Calcium — Capsules — Advanced MCHA Formula for Optimal Bone Health* 12 Researched Backed Ingredients for Bones*
Our Bone Builder Ultra Calcium features Microcrystalline Hydroxyapatite (MCHA) from New Zealand—the natural mineral form found in bone—plus vitamins D₃, K, C, and magnesium in capsules to support healthy bone density, promote bone structure and strength, help maintain skeletal integrity, support calcium utilization and mineralization, promote joint and connective tissue health, provide gentle digestive tolerance, help maintain bone matrix with natural collagen and proteins, support vitamin D-enhanced absorption, promote overall musculoskeletal wellness, help maintain comfort during daily activity, and support comprehensive bone health with researched cofactors* — while respecting natural MCHA sourcing. Produced in FDA-registered, GMP-certified facilities and 3rd-party lab tested for purity and potency by LifeSource Vitamins.
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible, evidence-based science.* Every claim is supported by peer-reviewed human RCTs or meta-analyses whenever available.
Clinically Studied Benefits
✓ Supports superior calcium absorption and tolerance* — Microcrystalline hydroxyapatite shows favorable absorption and GI tolerance versus common salts in comparative studies.*
NIH/PubMed — Martini et al., 2014
✓ Promotes reduced bone loss compared with calcium carbonate* — Comparative trials report slower bone density decline with MCHA versus calcium carbonate.*
NIH/PubMed — Heller et al., 2009
✓ Supports natural bone matrix composition* — MCHA provides minerals and proteins in a bone-like matrix for structural support.*
NIH/PubMed — Grynpas et al., 2014
✓ Promotes enhanced calcium utilization with vitamin D₃* — Vitamin D₃ increases calcium absorption and supports bone mineralization in authoritative summaries.*
NIH/ODS — Vitamin D Fact Sheet
✓ Supports vitamin K-directed calcium to bone* — Vitamin K-dependent proteins contribute to bone remodeling and proper mineral deposition.*
NIH/PubMed — Shea et al., 2018
✓ Supports reduced fracture risk with calcium + D in older adults* — Adequate intake associated with reduced fractures in clinical data.*
NIH/PubMed — Weaver et al., 2015
Additional / Promising Evidence
✓ May support dental and enamel strength* — Hydroxyapatite contributes to enamel remineralization in clinical and experimental data.*
NIH/PubMed — Fagrell et al., 2021
✓ Contributes to optimal calcium–phosphorus balance* — Guidance on Ca:P ratio and intake from NIH fact sheets.*
NIH/ODS — Calcium Fact Sheet
✓ Supports magnesium as a cofactor for bone formation* — Magnesium plays a role in bone mineralization alongside calcium in authoritative summaries.*
NIH/ODS — Magnesium Fact Sheet
✓ Aligns with healthy aging and osteoporosis prevention context* — Background on age-related bone loss and nutritional support from NIH resources.*
NIH/NIA — Osteoporosis Overview
University-Led & Academic Studies
✓ Supports vitamin D, calcium, and bone health education* — Harvard University materials review micronutrients in skeletal health.*
NIH-indexed — Harvard Nutrition Source
✓ Promotes osteoporosis mechanisms and prevention context* — Johns Hopkins teaching resources on bone biology and nutritional support.*
NIH-indexed — Johns Hopkins Bone Summaries
✓ Supports micronutrient research for bone health* — Oregon State University – Linus Pauling Institute overviews calcium, vitamin D, K, magnesium in skeletal contexts.*
NIH-indexed — Linus Pauling Institute Bone Overviews
Global Evidence & Reviews
✓ Confirms calcium, vitamin D, vitamin K, and magnesium roles in bone health* — NIH ODS fact sheets summarize evidence for bone mineralization and density.*
NIH/ODS — Calcium Fact Sheet
✓ Supports MCHA absorption and bone matrix benefits* — Comparative studies and reviews highlight MCHA's advantages for tolerance and structure.*
NIH/PubMed — Martini et al., 2014
✓ Aligns with vitamin D and K cofactors for bone remodeling* — Authoritative summaries emphasize synergistic roles in calcium utilization and deposition.*
NIH/ODS — Vitamin D Fact Sheet
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to align with credible science.*
Key Ingredients
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Microcrystalline Hydroxyapatite (MCHA)* — Bone-matrix minerals with natural collagen and proteins for structure and strength.*
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Vitamin D₃* — Enhances calcium absorption and mineralization.*
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Vitamin K* — Supports osteocalcin activation and bone remodeling.*
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Vitamin C* — Required for collagen synthesis in bone.*
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Magnesium* — Cofactor for bone formation and density.*
Brief Benefit Bullets
- Clinically supported MCHA for absorption & tolerance*
- Supports natural bone density, structure & strength*
- Provides bone-matrix minerals plus Type I collagen*
- With vitamins D₃, K, C & magnesium cofactors*
- Gentle on digestion compared with carbonate*
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3rd-party lab tested for purity & potency*
Suggested Use
See product label for full directions, or as directed by your healthcare professional. Do not exceed recommended dose. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
- Serving Size — 4 capsules
- Form — Capsules
- Free From — Non-GMO, gluten-free, no artificial colors*
- Quality — Third-party tested for identity, potency & purity
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Bone Builder Ultra Calcium with MCHA, Vitamins D3, K, C & Magnesium supports bone density, structure and strength while remaining gentle on digestion. 3rd-party tested.*
