BioStacks
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Ingredients (6)
Vitamin D
100%Dose
1000 IU
Target
1000–5000 IU
Form
Premium
Vitamin B6
100%Dose
2 mg
Target
1.3–25 mg
Form
Premium
Magnesium
100%Dose
200 mg
Target
100–400 mg
Form
Standard
Vitamin C
100%Dose
250 mg
Target
250–2000 mg
Form
Budget
Boron
100%Dose
3 mg
Target
3–6 mg
Form
Not listed
Other Ingredients (5)
Titanium DioxideColorant
Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.
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
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Best taken in the morning
The Vitamin B6 in it is what pulls this toward the morning. Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.
With a meal containing fat
Space it a couple of hours from Iron and Calcium
On the label
Take 2 capsules daily. For daily use.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$29.95
Pricier than 73% of 502 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.