BioStacks
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Ingredients (10)
Vitamin D3
100%Dose
1200 IU
Target
1000–5000 IU
Form
Premium
Calcium
100%Dose
1000 mg
Target
200–600 mg
Form
Standard
Phosphorus
100%Dose
500 mg
Target
100–500 mg
Form
Standard
Microcrystalline Hydroxyapatite
100%Dose
4000 mg
Target
200–600 mg
Form
Standard
Zinc
100%Dose
18 mg
Target
15–30 mg
Form
Standard
Other Ingredients (2)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
How to Take It
Best taken in the evening
The Magnesium in it is what pulls this toward the evening. Take it with a meal containing fat — the vitamins D and K in it absorb poorly without one.
With a meal containing fat
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron
On the label
Take 3 capsules per day with a meal or as directed by your qualified healthcare provider. We recommend spreading the dosage throughout the day.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$21.99
Near the median of 544 vitamin C supplements
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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.