BioStacks
NOW

Bone Strength

4 Capsules · 30 servings · $0.43/serving

48 / 100Average

Score Breakdown

Formulation
58
Safety
79
Final score
48/100

Ingredients (12)

Phosphorus

100%

Dose

287 mg

Target

100–500 mg

Form

Manganese

100%

Dose

2 mg

Target

1.8–5 mg

Form

Standard

Vitamin D3

68%

Dose

680 IU

Target

1000–5000 IU

Form

Premium

Thiamine

12%

Dose

3 mg

Target

25–100 mg

Form

Premium

Magnesium

100%

Dose

400 mg

Target

100–400 mg

Form

Budget

Other Ingredients (6)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

PotassiumMineral

Essential mineral naturally present in many plant-based supplement ingredients

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.