BioStacks
NOW

C-500 Calcium Ascorbate-C

1 Capsule · 100 servings · $0.07/serving

80 / 100Excellent

Best for

Score Breakdown

Formulation
80
Safety
100
Final score
80/100

Ingredients (3)

Vitamin C

100%

Dose

500 mg

Target

250–2000 mg

Form

Standard

Citrus Bioflavonoid Complex

4%

Dose

10 mg

Target

250–1000 mg

Form

Calcium

55 mg

Trace amount — not scored

Other Ingredients (3)

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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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.