What is the difference between NOW Foods C-500, Calcium Ascorbate-C, 100 Veg Capsules and NOW Foods C-1000 Zinc Immune, 180 Veg Capsules?

NOW Foods C-500, Calcium Ascorbate-C, 100 Veg Capsules contains 3 active ingredients, while NOW Foods C-1000 Zinc Immune, 180 Veg Capsules contains 2 active ingredients. Compare serving sizes, ingredient amounts, and daily values on this page.

Which supplement has more ingredients: C-500, Calcium Ascorbate-C, 100 Veg Capsules or C-1000 Zinc Immune, 180 Veg Capsules?

NOW Foods C-500, Calcium Ascorbate-C, 100 Veg Capsules has more active ingredients (3) compared to NOW Foods C-1000 Zinc Immune, 180 Veg Capsules (2).

NOW Foods C-1000 Zinc Immune vs NOW Foods C-500 Calcium Ascorbate-C

Side-by-side supplement facts comparison

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NOW Foods

C-500, Calcium Ascorbate-C, 100 Veg Capsules

4.9(7,290)·

Vitamin C is a water soluble nutrient well known for its vital role in the immune system. Vitamin C is also necessary for the production of collagen (a structural protein in connective tissue) and is therefore important for skin, bone, and joint health. Vitamin C is needed for amino acid metabolism, neurotransmitter synthesis, and the utilization of many nutrients, such as folic acid and iron. It is also a highly effective antioxidant that can help maintain healthy tissues by neutralizing free radicals generated during normal metabolism and exposure to environmental stressors. This product supplies calcium ascorbate, a buffered form of vitamin C that is bioavailable and non-acidic; it is enhanced with bioflavonoids, which work synergistically with vitamin C.

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NOW Foods

C-1000 Zinc Immune, 180 Veg Capsules

4.8(6,406)·

C-1000 Zinc Immune combines vitamin C with zinc for powerful immune system support. This product utilizes TRAACS™ Zinc Bisglycinate, a form of zinc that has been shown in clinical studies to have superior bioavailability compared to other forms of supplemental zinc.

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At a Glance

Verdict

C-1000 Zinc Immune suits those wanting a potent immune formula with high-dose vitamin C and zinc, while C-500 Calcium Ascorbate-C fits those preferring a buffered form with calcium and bioflavonoids. The trade-off is potency and dual-nutrient support vs. a gentler, multi-faceted approach.

Who each is for

NOW Foods C-1000 Zinc Immune

You want a high-dose vitamin C supplement with 1,000 mg per capsule
C-1000 Zinc Immune includes 15 mg zinc for additional immune support
You prefer straightforward ascorbic acid form
C-1000 Zinc Immune provides 180 capsules per bottle

NOW Foods C-500 Calcium Ascorbate-C

You prefer a buffered, non-acidic form of vitamin C
C-500 Calcium Ascorbate-C provides calcium alongside vitamin C
You want a lower vitamin C dose at 500 mg per capsule
C-500 Calcium Ascorbate-C includes citrus bioflavonoids for enhanced absorption

At a Glance

Processing analysis…

Ingredient Comparison

Total mg Per Serving

C-500, Calcium Ascorbate-C, 100 Veg Capsules

C-1000 Zinc Immune, 180 Veg Capsules

—

0 servings per container

1 shared ingredients

2 only in C-500, Calcium Ascorbate-C, 100 Veg Capsules

1 only in C-1000 Zinc Immune, 180 Veg Capsules

C-500, Calcium Ascorbate-C, 100 Veg Capsules

NOW Foods · 1 Veg Capsule

C-500, Calcium Ascorbate-C, 100 Veg Capsules

NOW Foods · 1 Veg Capsule

Ingredient	Amount	DV
Vitamin C (from Calcium Ascorbate)	500 mg	556%
Calcium (from Calcium Ascorbate)	55 mg	4%
Citrus Bioflavonoid Complex	10 mg	†

† Daily Value not established

C-1000 Zinc Immune, 180 Veg Capsules

NOW Foods · 1 Veg Capsule

C-1000 Zinc Immune, 180 Veg Capsules

NOW Foods · 1 Veg Capsule

Ingredient	Amount	DV
Vitamin C (as Ascorbic Acid)	1 g (1,000 mg)	1111%
Zinc (elemental) (from 75 mg Zinc Bisglycinate) (TRAACS™)	15 mg	136%

† Daily Value not established

Other Ingredients Analysis

Shared (1)

Analysis of inactive ingredients for dietary restrictions, allergens, and artificial additives.

C-500, Calcium Ascorbate-C, 100 Veg Capsules

NOW Foods

100

Excellent

Other Ingredients

Hypromellose (cellulose capsule), microcrystalline cellulose and stearic acid (vegetable source).

Positives

Appears vegan-friendlyNo artificial colors or flavors detectedNo common allergens

C-1000 Zinc Immune, 180 Veg Capsules

NOW Foods

100

Excellent

Other Ingredients

Hypromellose (cellulose capsule), hydroxypropyl cellulose, stearic acid (vegetable source) and silicon dioxide.

Positives

Appears vegan-friendlyNo artificial colors or flavors detectedNo common allergens

How Clean Score is Calculated

Each positive: +5 points

Each warning or concern: −10 points

Serving Information

Detail	C-500, Calcium Ascorbate-C, 100 Veg Capsules	C-1000 Zinc Immune, 180 Veg Capsules
Serving Size	1 Veg Capsule	1 Veg Capsule
Servings Per Container	—	—
Package Quantity	100 count	180 count

Certifications & Claims

C-500, Calcium Ascorbate-C, 100 Veg Capsules

Non-GMOVeganVegetarianKoshercGMP Compliant

C-1000 Zinc Immune, 180 Veg Capsules

Non-GMOVeganVegetariancGMP Compliant

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Compare Ascorbic Acid Supplements: Ingredients & Supplement Facts

NOW Foods C-1000 Zinc Immune vs NOW Foods C-500 Calcium Ascorbate-C

C-500, Calcium Ascorbate-C, 100 Veg Capsules

C-1000 Zinc Immune, 180 Veg Capsules

At a Glance

Verdict

Who each is for

NOW Foods C-1000 Zinc Immune

NOW Foods C-500 Calcium Ascorbate-C

At a Glance

Ingredient Comparison

Total mg Per Serving

C-500, Calcium Ascorbate-C, 100 Veg Capsules

C-500, Calcium Ascorbate-C, 100 Veg Capsules

C-1000 Zinc Immune, 180 Veg Capsules

C-1000 Zinc Immune, 180 Veg Capsules

Other Ingredients Analysis

C-500, Calcium Ascorbate-C, 100 Veg Capsules

C-1000 Zinc Immune, 180 Veg Capsules

Serving Information

Certifications & Claims

Browse more comparisons in

At a Glance

Verdict

Who each is for

NOW Foods C-1000 Zinc Immune

NOW Foods C-500 Calcium Ascorbate-C

What you get from each

NOW Foods C-1000 Zinc Immune

NOW Foods C-500 Calcium Ascorbate-C

Key Differences