BioStacks
Best for
Ingredients (3)
Vitamin D3
50%Dose
500 IU
Target
1000–5000 IU
Form
Premium
Vitamin C
30%Dose
75 mg
Target
250–2000 mg
Form
Budget
Zinc
20%Dose
3 mg
Target
15–30 mg
Form
Standard
Children's product — scores and dose assessments use adult reference ranges. Actual adequacy may differ for children.
Other Ingredients (11)
Glucose SyrupSweetener
High glycemic load; source typically corn (generally gluten-free)
SucroseSweetener
Added sugars and high glycemic load; dental caries risk
Flaxseed OilCarrier Oil
Flaxseed (linseed) oil, an ALA omega-3 source used as a softgel carrier oil
Natural Color (unspecified)Colorant
Umbrella declaration for a colorant from a natural source (fruit, vegetable, or plant extract) that the label does not name specifically
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Citric AcidAcidulant
Natural acid derived from citrus fruits
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
PectinGelling Agent
Plant polysaccharide from citrus peels or apple pomace used to gel pectin-based gummies
How to Take It
Take it anytime
Fat-soluble — take with your largest fat-containing meal. Time of day doesn't matter.
With a meal containing fat
Space it a couple of hours from Iron and Calcium
On the label
Children (3 years and older): Chew 1-2 gummies daily with a meal. Take a few hours before or after taking other medications or natural health products
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
C$21.99≈ $16.05
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.