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NOW Foods

Pure, Buffered Calcium Ascorbate

Pure, Buffered Calcium Ascorbate

Item: NWF594

  • Vegetarian & vegan formula

  • 100% pure buffered vitamin C powder

  • Antioxidant protection

8 oz (227 grams) Pwdr

Retail $18.99
Save 39%
In Stock

Supplement Facts

Serving Size ¼ Level Teaspoon (1.12 g)

Servings Per Container about 203

  Amount Per Serving % Daily Value
Vitamin C(from Calcium Ascorbate) 890 mg 1,483%
Calcium(from Calcium Ascorbate) 100 mg 10%

Other ingredients: None.

Suggested Usage: Take ¼ level teaspoon 1 to 3 times daily.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

Natural color variation may occur in this product.

This product is sold by weight not volume.

Store in a cool, dry place after opening.

  • Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.
  • Produced in a GMP facility that processes other ingredients containing these allergens.
  • Non-GMO
  • Vegetarian/Vegan
  • Recyclable Bottle.

Shipping Weight

.60 lbs

  • Vegetarian & vegan formula

  • 100% pure buffered vitamin C powder

  • Antioxidant protection

Calcium ascorbate is an optimal nutritional supplement that combines ascorbic acid (vitamin C) with calcium carbonate. By combining these two dietary ingredients, we have created a buffered source of vitamin C that will not contribute to gastric irritation in sensitive persons.

Terms and Ingredient Definitions

NOW Foods Pure, Buffered Calcium Ascorbate Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Pure, Buffered Calcium Ascorbate is rated 4.8 out of 5 by 9.
Rated 5 out of 5 by from Good source of vitamin C I like this vitamin C powder. It mixes well in water. I mix it together with msm & magnesium in 2 qts. of water which I drink daily. Taste is not a problem.
Date published: 2015-10-15
Rated 5 out of 5 by from
Date published: 2013-12-05
Rated 5 out of 5 by from Best Vitamin C I've ussed I've used a number of different vitamin C products and this one is the best I've come across. It is cost-effective, easily dissolved, and does not cause acid-related difficulties. I use it every day and have for several years--would not be without it!
Date published: 2013-05-26
Rated 5 out of 5 by from 'Buffered vitamin C Vitamin C (ascorbic acid) has been proven to be of benefit in many areas of our health. This form of C is buffered so that it doesn't affect the pH of one's stomach.
Date published: 2013-04-09
Rated 5 out of 5 by from Many years ago my ND recommended vitamin C as calcium ascorbate in powdered form and I've been using it ever since. Now's product dissolves well in liquid with no bitter taste, as the calcium buffers the ascorbic acid. It's great added to flavored water. Now has a great product and Swanson's price can't be beat!
Date published: 2013-03-30
Rated 5 out of 5 by from Mixes well This dissolves better than most i have tried.
Date published: 2012-09-19
Rated 5 out of 5 by from Great Product I've got a sensitive stomach and GI tract, and this is a perfect way to get the extra vitamin C I need. I don't get any discomfort with this like I did other forms of vitamin C.
Date published: 2012-07-28
Rated 3 out of 5 by from It's Good enough Does the job More effective than Regular Vit C
Date published: 2012-04-22
Rated 5 out of 5 by from Calcium Ascorbate I can't take jus any type of Vitamin C. Calcium Ascorbate contains Vitamin C, but it doesn't have the negative effects of other Vitamin C brands. Excellent!
Date published: 2011-07-01
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Why Shop Swanson® Brands?

"With my personal 100% money-back satisfaction guarantee, you have nothing to lose and great savings to gain."

Lee Swanson, Founder of Swanson Health Products

Risk-Free Purchase Guarantee on NOW Foods Pure, Buffered Calcium Ascorbate

If you are dissatisfied for any reason, we'll give you a full refund and pay return shipping.

Swanson's Standards

We are dedicated to offering the highest quality products at the best price. Find out more about how we ensure such a high standard in everything we do.

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© 2017 Ratings based on results of the 2017 Survey of Supplement Users. More information at
© 2017 Swanson Health Products – Terms of Service