BioStacks
Source Naturals

Ultimate Ascorbate C Powder

Powder · 1.38 Grams · 164 servings · $0.13/serving

59 / 100Average

Best for

Score Breakdown

Formulation
59
Safety
100
Final score
59/100

Ingredients (6)

4 scored · 2 not scored

Vitamin C1000 mg

Optimal dose

Potassium103 mg

Within effective range

Zinc8 mg

Partial dose · Standard form

Manganese1 mg

56% of effective dose · Standard form

Calcium60 mg

Trace amount — not scored

Other Ingredients

Fillers, coatings, and additives

No other ingredients listed

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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.