BioStacks
Kirkland Signature

Vitamin C 1000 mg with Rose Hips and Bioflavonoids

1 Tablet · 500 servings

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What it does

The product name and ingredient list do not agree; purpose cannot be confirmed.

Citrus Flavonoid

Form not confirmedGrade —

Label lists Hesperidin (10 mg). Benefit information is limited.

Vitamin C

Form not confirmedGrade —

Label lists Vitamin C (1000 mg). Benefit information is limited.

Immune
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Ingredients (3)

IngredientDoseTarget/referenceForm

Other ingredients

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

Lab testing

How to take it

With or without food

On the label

Adults, as a dietary supplement, take 1 tablet daily, preferably before meals.

Price check

$19.99

$0.04 / serving

$10$20$50

Near the median of 375 vitamin C supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.

Not medical advice. Consult your healthcare professional.

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