BioStacks
Kirkland Signature
Vitamin C 1000 mg with Rose Hips and Bioflavonoids
1 Tablet · 500 servings · $0.04/serving
Best for
Ingredients (3)
Vitamin C
100%Dose
1000 mg
Target
250–2000 mg
Form
Not listed
Citrus Bioflavonoid Complex
40%Dose
100 mg
Target
250–1000 mg
Form
—
Hesperidin
2%Dose
10 mg
Target
500–1000 mg
Form
—
Other Ingredients (10)
MaltodextrinBinder
Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.
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
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Guar GumThickener
Natural thickener derived from guar beans
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Vegetable OilCarrier
Edible oils used as carriers in softgels and as processing aids
How to Take It
Take it anytime
Water-soluble — timing doesn't matter. Split doses above ~500 mg if you want to absorb more of it.
With or without food
On the label
Adults, as a dietary supplement, take 1 tablet daily, preferably before meals.
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.