BioStacks
Best for
Ingredients (2)
Vitamin C
100%Dose
500 mg
Target
250–2000 mg
Form
Not listed
Citrus Bioflavonoids
10%Dose
25 mg
Target
250–1000 mg
Form
—
Other Ingredients (4)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Xanthan GumThickener
Natural thickener from fermented carbohydrates
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
ONE OR TWO TABLETS PER DAY Swallow with water or a cold drink. Not to be chewed. Do not exceed the recommended intake. Ultra Vitamin C can be used for as long as required. Can be used in conjunction with any other product in the Vitabiotics range. Suitable for vegetarians Suitable for vegans No artificial colours No preservatives No yeast or lactose Ultra Vitamin C is not tested on animals
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
£6.15≈ $7.81
Cheaper than 95% 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.