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Bone Strength

product on market Capsule NOW Safety: 98/100
98/100

This product looks safe

  • Magnesium: 400mg is 1.1× the Tolerable Upper Intake Level (350mg)
  • 50% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin D and C are supported by strong evidence for maintaining bone density and collagen synthesis. Thiamine and protein provide essential metabolic and structural support, though their specific roles in bone strength are less emphasized. Overall evidence coverage for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Magnesium: 400mg is 1.1× the Tolerable Upper Intake Level (350mg)

Label

Product Label

Label for Bone Strength
Open Full PDF View on NIH DSLD →
Details

Label Data

4 Capsule(s)
Serving Size
30
Servings
Botanical with Nutrients
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
5 Calorie(s)
Protein
1 Gram(s)
Vitamin C
133 mg (148% DV)
16.68 mcg (83% DV)
1.1× RDA — within safe limits 608 studies (A:16, B:251)
3 mg (250% DV)
2.5× RDA — within safe limits 76 studies (A:0, B:33)
Calcium
620 mg (48% DV)
287 mg (23% DV)
Within RDA (0.4× RDA) 13 studies (A:0, B:3)
400 mg (95% DV)
Exceeds UL by 1.1× (UL: 350 mg) 316 studies (A:8, B:159)
7 mg (64% DV)
Within RDA (0.6× RDA) 263 studies (A:6, B:134)
0.7 mg (78% DV)
Within RDA (0.8× RDA) 37 studies (A:0, B:11)
2 mg (87% DV)
Within RDA (0.9× RDA) 9 studies — no high-quality reviews
Horsetail
67 mg
467 mcg
Market median: 3.0mg (58 products) 3 studies — no high-quality reviews
67 mcg
Within RDA (0.6× RDA) 275 studies (A:9, B:175)

Other Ingredients

Bovine Gelatin Magnesium Stearate Silicon Dioxide Stearic Acid Glucosamine Potassium Sulfate Complex Microcrystalline Cellulose
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: Take 4 capsules daily, preferably in divided doses, with food.

Warnings & Precautions

Not manufactured with wheat, gluten, soy, milk, egg, fish or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Keep out of reach of children.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Contains shellfish (shrimp, crab).

Formulation Notes

Microcrystalline Hydroxyapatite (MCHA) is a compound that normally makes up the crystalline matrix of bone and teeth and is the substance that gives them their rigidity. MCHA contains highly absorbable Calcium and Phosphorus, which are the major mineral components of bone.

NOW Bone Strength is a comprehensive bone support product with MCHA. It also provides magnesium and other important minerals, as well as vitamins C and D to aid in the synthesis and maintenance of bone tissue. NOW Microcrystalline Hydroxyapatite (MCHA) is derived exclusively from Australian cattle.

Not manufactured with wheat, gluten, soy, milk, egg, fish or sesame ingredients.

Natural color variation may occur in this product.

Supports bone health

MCHA for bone & teeth strength Bone Strength With vitamins and minerals for comprehensive support

Made and quality tested in the USA with globally sourced ingredients.

MCHA = Microcrystalline Hydroxyapatite (BSE-free)

Additional Information

Store in a cool, dry place after opening.

This bottle is made from 100% PCR (post-consumer recycled) resin.

GMP Quality Assured

Minerals Family owned since 1968.

Metadata

Product Details

UPC / SKU7 33739 01228 9
DSLD Entry Date2025-09-25
Product TypeBotanical with Nutrients
FormCapsule
BrandNOW
DSLD ID335210
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.