BioStacks
Source Naturals

Vitamin C

Powder · 0.25 tsp · 212 servings · $0.09/serving

iHerbAmazon

Best for

Immune

Ingredients (1)

Vitamin C

100%

Dose

1054 mg

Target

250–2000 mg

Form

Budget

Other Ingredients

No other ingredients listed

How to Take It

Take it anytime

Plain ascorbic acid is acidic — high doses can bite on an empty stomach. Take it with food if that happens, and split doses above ~500 mg.

With or without food

On the label

1/4 teaspoon mixed in water or juice as desired, preferably with a meal.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$19.27

$10$20$50

Near the median of 502 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.

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