BioStacks
Best for
Ingredients (3)
Vitamin D3
40%Dose
400 IU
Target
1000–5000 IU
Form
Premium
Vitamin C
100%Dose
50 mg
Target
40–200 mg
Form
Budget
Collagen
50%Dose
10 mg
Target
20–100 mg
Form
Premium
Other Ingredients
No other ingredients listed
How to Take It
Take it anytime
Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.
With a meal containing fat
On the label
Adults Chew (do not swallow whole) 1 tablet once a day.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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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.