Doctors DMC / Vitamin CDoctors DMC Acid-Free Vitamin C bottle1000 mg per serving

The Doctors DMC collection

Acid-Free Vitamin C

Buffered Vitamin C 1000 mg · Acid-Free C-1000

1000 mg of Vitamin C as calcium ascorbate, with 110 mg of calcium per serving. A focused buffered Vitamin C formulation.

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Read Supplement Facts
Vitamin C per serving
1000 mg
Serving size
1 capsule
Servings per container
30

Inside the formulation

Know what’s
in your supplement.

The Supplement Facts identify calcium ascorbate as the source of both Vitamin C and calcium. Each serving lists 1000 mg of Vitamin C and 110 mg of calcium.

Explore the research on buffered Vitamin C, from stomach tolerance to collagen formation and immune support.

Benefits, with context

Why these ingredients are of interest.

Explore the benefits highlighted in our infographics, with study details and links to the research.

Research topic / 01

Calcium ascorbate and stomach tolerance

Gentle on your stomach

Less Acidic than Ascorbic Acid

Vitamin C is essential. Stomach irritation isn’t.

The artwork describes a human study: 1,000 mg/day, a 9-day crossover, and 50 healthy volunteers. The ingredient discussed here is calcium ascorbate, the Vitamin C source listed in this formulation.

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Calcium ascorbate infographic with a stomach illustration and product bottle
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Research topic / 02

Vitamin C and collagen formation

Vitamin C supports collagen formation

Collagen Support, From Skin to Bone.

Your skin relies on collagen

The cited source is an EFSA scientific opinion. The artwork lists Vitamin C, antioxidant protection, collagen formation, and immune function as its topics.

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Vitamin C collagen-formation infographic beside a woman’s portrait
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Research topic / 03

Vitamin C and immune function

Vitamin C supports immune function

Primes your natural defenses for everyday immune challenges.

This graphic discusses Vitamin C. The Supplement Facts list 1000 mg of Vitamin C as calcium ascorbate per serving.

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Vitamin C immune-function infographic with a shield and product bottle
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Research topic / 04

Vitamin C and iron absorption

Vitamin C helps in iron absorption From Plant based foods

Helps your body absorb more iron for healthy blood and energy!

The graphic’s reference to plant based foods concerns dietary iron. It does not identify the source of the Vitamin C in the bottle.

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Vitamin C iron-absorption infographic with red blood-cell illustrations
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Research topic / 05

Vitamin C and antioxidant support

Vitamin C is a great antioxidant support

Everyday protection against cellular wear and tear.

The ingredient featured in this artwork is Vitamin C. Its statement is presented alongside the original graphic for context.

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Vitamin C antioxidant-support infographic with a shield and a woman outdoors
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Read the label

Supplement Facts

Listed ingredients and amounts,
alongside the original panel.

Supplement Facts

Serving size: 1 capsule
Servings per container: 30

Acid-Free Vitamin C: ingredients per serving
IngredientAmount per serving
Vitamin Cas Calcium Ascorbate1000 mg
Calciumas Calcium Ascorbate110 mg

Read the pack label for the full ingredient list and directions before use. Daily Values are not shown on this panel.

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Original Supplement Facts graphic for Doctors DMC Acid-Free Vitamin C
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Follow the sources

Research references

Explore the studies behind these ingredient topics. Ingredient research does not establish the same results for the finished Doctors DMC formulation.

  1. Vitamin C / EFSA scientific opinion

    EFSA Journal 2009;7(9):1226

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