BioStacks
Best for
Ingredients (10)
Vitamin D3
100%Dose
5000 IU
Target
1000–5000 IU
Form
Premium
Lutein
100%Dose
10 mg
Target
10–20 mg
Form
Premium
Biotin
100%Dose
2000 mcg
Target
1000–5000 mcg
Form
—
Magnesium
100%Dose
125 mg
Target
100–400 mg
Form
Standard
Vitamin K2
89%Dose
80 mcg
Target
90–200 mcg
Form
Standard
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
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
Space it a couple of hours from Iron and Calcium
On the label
As a dietary supplement, take 2 capsules daily. For daily use.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$39.95
Pricier than 92% of 148 vitamin B7 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.