BioStacks
Source Naturals

Ultimate Ascorbate C 1,000 mg

2 Tablets · 50 servings · $0.32/serving

iHerbAmazon

Best for

ImmuneGeneral HealthDental

Ingredients (11)

Vitamin C

100%

Dose

2000 mg

Target

250–2000 mg

Form

Standard

Manganese

100%

Dose

5 mg

Target

1.8–5 mg

Form

Standard

Zinc

100%

Dose

23 mg

Target

15–30 mg

Form

Standard

Magnesium

98%

Dose

98 mg

Target

100–400 mg

Form

Standard

Potassium

100%

Dose

99 mg

Target

99–500 mg

Form

Standard

Other Ingredients (4)

Hydroxypropyl CelluloseBinder

An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.

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

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Take it anytime

No evidence a formula this broad works better at any particular hour. Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.

With a meal containing fat
Space it a couple of hours from Iron and Calcium

On the label

2 tablets 1 to 2 times daily; for short term, high potency use, do not exceed 8 tablets daily.

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

Price Check

$16.15

$10$20$50

Cheaper than 74% of 574 magnesium 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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