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  • Product Code: NBC-00301
  • UPC Code: 728177003012
  • Package Quantity: 16 oz (454 g)
  • Dimensions: 3.1 x 3.1 x 6.1 in, 1.15 lbs (0.52 kg)
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Product Overview

  • Where Science Works Naturally
  • Pharmaceutical Grade
  • Dietary Supplement

Highly Soluble

NutriBiotic Ascorbic Acid with Antioxidant Bioflavonoids delivers 100% pharmaceutical grade vitamin C, an essential nutrient beneficial to the body's overall health, and antioxidant bioflavonoids from lemon in a highly soluble form.

Since vitamin C is not produced by the body, it must be replenished daily. Vitamin C is often found in nature accompanied by bioflavonoids, a group of water-soluble plant pigments. Bioflavonoids work synergistically with vitamin C in the body to play an important role supporting numerous biochemical reactions, such as normal fluid balance, the function of various enzyme systems, tissue growth and repair, and strengthening the walls of blood vessels.

NutriBiotic Ascorbic Acid with Antioxidant Bioflavonoids is well tolerated by most highly allergic individuals.

Suggested Use

As a dietary supplement, mix 1 teaspoon or more into a glass of juice of water. Take with or without meals, or as directed by a licensed healthcare professional.

Other Ingredients


Vegan and hypoallergenic.

Made without common food allergens such as milk, soy, egg, yeast, and wheat. Contains no rose hips, animal products, fillers, excipients, lubricants, binders, starch, colorings, flavorings, or preservatives.

Our promise and guarantee: We use only 100% pure pharmaceutical grade L-ascorbic acid USP-FCC* (C6H8O6), which contains no corn residue, plant antigens, or protein impurities. Individuals allergic to corn or yeast can use this product with confidence.

pH 3.1‡

Made without Gluten or GMOs

‡Measure of acidity/alkalinity (neutral pH is 7.0)

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Supplement Facts
Serving Size: 1 Teaspoon (5 g)
Servings per Container: 90
  Amount Per Serving % Daily Value
Vitamin C (as L-ascorbic acid USP-FCC*) 4000 mg 6667%
Lemon Bioflavonoid Complex 50-USP
Hesperidin; eriocitrin; naringin and naringenin; flavonols, flavones, and other phenolic compounds.
1000 mg
† Daily Value not established.
*United States Pharmacopoeia - Food Chemical Codex

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
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1 Stars

The best vitamin C formula I have found so far !

Posted by Reviewer1495522 on Mar 10, 2013

I have tested dozens of vitamin C formulas (buffered and non-buffered) and this one has the best noticeable boost effect on my body. My skin is better looking (less pimples and faster healing), I barely notice colds, and I feel much, MUCH more healthier ! The big plus is that it is additive free (no dubious stearic acid, magnesium stearate, etc.). The only drawbacks are that it doesn't dissolve easily and that the taste is so-so... An excellent supplement overall.

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7 people found the following review helpful

Dissolves easily when stirred

Posted by PaleoLowCarber on Aug 28, 2013

I'm not sure if the reviewers did stir properly in water before ingestion, for mine they do dissolve, and quite easily too. I use normal temperature water and it has been 3-4 bottles since I first started. I like the fact that they don't use corn based Vit-C, and is clean, unlike other commercial Vit-C supplements. Keep it up, NutriBiotic! Oh yes, and it's with Bioflavonoids which is an important component for maximum absorption of Vit-C in our body. Best Vit-C product I've purchased so far.

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5 people found the following review helpful

Depends how you intend on using it but it well for my intentions

Posted by Reviewer1641477 on Jul 18, 2013

Ive used this before as its the only product i know of that has ascorbic acid with bioflavonoids using powder to lower the price per mg. Used in combination to make it the most bioflavalaible form of vit c i add bicarb and lecithin granules. Taken in a large enough quantity replaces caffeine for effect and has also prevented a nasty cold i would have had caught from 3 of my colleagues that i work with in close confined proximity (dosed it every 1-2 hours for a day) Unless i can find the same product for cheaper else where iherb have definitely got a returning customer for this.

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4 people found the following review helpful

Sourced from China

Posted by Reviewer2295564 on Dec 30, 2013

This product is sourced from China. My understanding is that all powdered vitamin C comes from China except for one brand. You can find it by doing an internet search.

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4 people found the following review helpful

Favorite Vitamin C

Posted by 5541955812575374091 on Apr 21, 2014

I had to find a good Vitamin C after I started mega dosing with it. I've battled with low stomach acid, so any time I tried buffered C I would get a bloated stomach ache. Straight ascorbic acid was sometimes too acidic, plus I wanted something with bioflavonoids. This is the only non-buffered C w/ bioflavonoids I've been able to find. I wish they had it in capsules, but the powder is fine. Best tasting C powder I've tried. Tastes fine in water. I have about 5g/day. Thank you!

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3 people found the following review helpful

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