
1000 mg Vitamin C
Acid-Free Vitamin C
Calcium ascorbate · 110 mg calcium
Research topics: Stomach tolerance · Collagen formation · Immune function
The collection
Acid-Free Vitamin C, Plant-Based Acid-Free Vitamin C, and Glutathione. Get to know each formulation, starting with the facts.

1000 mg Vitamin C
Calcium ascorbate · 110 mg calcium
Research topics: Stomach tolerance · Collagen formation · Immune function

1000 mg Vitamin C
With orange peel & amla extracts
Research topics: Stomach tolerance · Amla & orange peel · Antioxidant support

500 mg L-Glutathione
With 40 mg ascorbic acid
Research topics: Skin appearance · Antioxidant defense · Glutathione levels
The facts, side by side
Amounts per serving from the Supplement Facts.
All three list a serving size of 1 capsule.
| Product | Primary listed ingredient | Amount per serving | Additional listed ingredients | Servings per container |
|---|---|---|---|---|
| Acid-Free Vitamin C | Vitamin Cas Calcium Ascorbate | 1000 mg | Calcium: 110 mg | 30 |
| Plant-Based Acid-Free Vitamin C | Vitamin Cas Calcium Ascorbate | 1000 mg | Calcium: 110 mgOrange Peel Extract: 500 mgAmla Extract: 500 mg | 30 |
| Glutathione | L-Glutathione | 500 mg | Ascorbic Acid: 40 mgExcipients: q.s. | 30 |
Glutathione’s panel also lists Microcrystalline Cellulose and Magnesium Stearate under other ingredients. Full panels and formulation notes are available on each product page.
The Doctors DMC range
Explore the ingredients, read the facts,
and see the research in context.