Customize Your Shopping Experience!

Please select the destination country, language, and currency you prefer.

Available Shipping Methods
Available Payment Methods
Added to Cart
Combo Discount:
View/Edit Cart Checkout
Cart Total:
Customers Also Bought:

Source Naturals, Magnesium Ascorbate, 8 oz (226.8 g)

By Source Naturals

Our Price:
You Save:
$10.57 (46%)
  • Volume Discount
  • Buy 4+
    Save 5%
Earn 10% Loyalty Credit ?

This product is already in your Wish List.

View Wish List

This product is now in your Wish List.

This product is already in your Notification List.

Cancel notification request.

This product is now in your Notification List.

Out of Stock
  • Product Code: SNS-00834
  • UPC Code: 021078008347
  • Package Quantity: 8 oz (226.8 g)
  • Dimensions: 2.6 x 2.6 x 5 in, 0.6 lbs (0.27 kg)

Product Overview

  • Dissolves Instantly
  • Dietary Supplement
  • Immune System Support

Magnesium ascorbate is non-acidic (pH neutral) and gentle on the digestive system. Vitamin C plays a vital role in collagen formation, amino acid metabolism, hormone synthesis, and the body's immune system. Magnesium is an essential mineral, playing a key role in over 300 enzymatic reactions in metabolism. These reactions include those involved in the Krebs cycle (one of the body's main energy production processes), energy storage, the breakdown of fatty acids, protein synthesis, DNA metabolism, the relaxation of both voluntary and involuntary muscle tissue, neurotransmitter activity, and hormone regulation. Magnesium is stored primarily in the bones and plays a role in bone formation.

Suggested Use

A rounded 1/4 teaspoon daily, mixed in water or juice as desired, preferably with a meal.

Other Ingredients

Suitable for vegetarians and Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat.

Contains no sugar, starch, salt, preservatives or artificial color, flavor or fragrance.


Keep dry, away from heat and direct sunlight. Always replace cap. Do not refrigerate.

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Visit Manufacturer's Website
Supplement Facts
Serving Size: 1/4 Rounded Teaspoon (approx. 1.25 g)
Servings per container: 189
  Amount Per Serving: %DV
Total Carbohydrate 1 g <1%*
Vitamin C (as magnesium ascorbate) 1,000 mg 1,667%
Magnesium (as magnesium ascorbate) 77 mg 19%
*Percent Daily Values (%DV) are based on a 2,000 calorie diet

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars

Like a lot

Posted by alloriginal on May 22, 2013

To me, this is a great vitamin c product, especially if you take large doses as I do. It has a slightly sour taste that I find tolerable. I simply mix a half-teaspoon into several ounces of water and drink it down. A good way to get additional magnesium as well. I believe that nutritional supplements saved my life. I've tried a lot of products, and I know what works and what doesn't. My reviews are honest, straighforward, and based on my experience. Read my other reviews to quickly learn from my three decades of research and experimentation.

Was this review helpful to you?

5 people found the following review helpful

Great Ascorbate!

Posted by Reviewer1180612 on Oct 06, 2011

Does not taste bad. Dissolves well. Easy on my stomach (unlike ascorbic acid, which gave me terrible heart burn) Very happy with this product, wish they carried it in a larger size.

Was this review helpful to you?

4 people found the following review helpful

A great choice for Vit C

Posted by Reviewer2156323 on Mar 04, 2011

I am always short on Magnesium so I was happy to find a Vit C/Magnesium blend. The taste is similar to other powdered magnesium (not great but easily drinkable) but it can be mixed with a little fresh lemon juice and stevia to make it more palatable. I love that it mixes thoroughly.

Was this review helpful to you?

3 people found the following review helpful

best vitamin C I've used

Posted by Reviewer1694531 on Jun 27, 2010

I use magnesium ascorbate for a vitamin C source because it is not acidic like ascorbic acid. It's supposed to be more bioavailble and it does not upset my stomach. I prefer this buffered form.

Was this review helpful to you?

2 people found the following review helpful

Worst Product Ever

Posted by Reviewer1331288 on Apr 12, 2008

This is officially the worst product I've ever ordered from iherb. Firstly it is listed in the iherb catalogue as "crystals". It is not at all crystal but is instead a chalky white powder! Secondly and most serious of all it is listed on the product label as being "ph neutral". As another reviewer said it is most definitely not ph neutral but instead quite acidic! Please iherb remove this product from your otherwise excellent range. If I could give zero stars I would - but unfortunately 1 is the lowest it will go.

Was this review helpful to you?

5 people found the following review helpful

See All Reviews