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Source Naturals

Ultimate Ascorbate C™, 100 Tablets

4.7 · 304 reviews
1,685 ₽

Dietary Supplement Supports Immune System 1,000 mg Each tablet contains 1,000 mg of vitamin C as a blend of five mineral ascorbates and ascorbic acid complexes. Vitamin C is an essential nutrient that functions as both a co-factor and antioxidant throughout the body. Vitamin C plays a vital role in collage formation, amino acid metabolism, hormone synthesis, and the body’s immune system.

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Dietary Supplement Supports Immune System 1,000 mg Each tablet contains 1,000 mg of vitamin C as a blend of five mineral ascorbates and ascorbic acid complexes. Vitamin C is an essential nutrient that functions as both a co-factor and antioxidant throughout the body. Vitamin C plays a vital role in collage formation, amino acid metabolism, hormone synthesis, and the body’s immune system.

Customer reviews

5.0
verified purchase
I take several grams every day

I've used megadoses of vitamin c for 3 decades, and I believe passionately that I owe my good health and vitality in no small part to my regular use. Ultimate Ascorbate C is a tablet best utilized when taken on a full stomach (although a tablet at bedtime is good idea too). Because it is non-acidic it will not cause stomach upset. Read my other reviews to quickly learn from my three decades of research and experimentation.

10/10/2012
3.0
verified purchase
OK but contains Stearic acid

This is a good formula of vitamin c ascorbates and flavinoids. It is still better than not taking any vitamin C but you really take high doses of this one I feel anyway due to being more than just ascorbic acid. It is said that stearic acid suppresses T cells and well we need those working for our immune system. Anyhow will not purchase again and go back to my usual , non gmo and filler free powder. iHerb provides good customer service and fast delivery via DHL Thanks!

4/5/2016
5.0
verified purchase
Best Vitamin C on the Market

Not many mixed mineral ascorbates out there, especially since Country Life stopped making theirs. Nature’s Plus still makes one, but you don’t need timed release with a non-acidic vitamin C like this. 1000 mg per tablet, plus bioflavonoids, rutin, and hesperedin - the total package. And the zinc ascorbate is a nice way to have my girlfriend get a little extra zinc without having to take an extra pill.

6/12/2025
5.0
verified purchase
Vitamin C

I like the product because of the content of different minerals and the fact that vitamin C is in more absorbable form than ascorbic acid.

8/13/2024
5.0
verified purchase

I take 2000 a day then switched to timed release ones

2/14/2026
5.0
verified purchase
Excelent!

Super product, I will definitely order it again, I recommend it to everyone, the packaging is of high quality, and the ingredients are excellent. Fast delivery, everything arrived in good condition and was well packaged !!!

1/26/2026
5.0
verified purchase
Affordable vitamin C

Vitamin C ingredients in a good size and of high-quality

11/6/2025
5.0
verified purchase
Strong Immune Support

Source Naturals Ultimate Ascorbate C provides excellent vitamin C support for daily wellness and immune health. The quality is outstanding, with easy-to-swallow tablets that maintain potency over time. The ingredients are well formulated, combining buffered vitamin C with minerals for better absorption. The taste is mild and pleasant for a vitamin C supplement. The use is simple, take one or two tablets daily to support overall immunity and energy.

10/25/2025
5.0
verified purchase

This supplement, to me, is kind of two in one, in term of benefits: lThere is no taste. I would consider its capability to be absorbed to be decent. What I like about it is you take it with food.

9/12/2025
5.0
verified purchase
Never without this!

I take this daily and extra for sore muscles. When sickness starts... C, D3, Zinc and Usnea tincture can shorten or stop the sickness altogether.

7/13/2025