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iHerb Customer Reviews



Savings of: $8.75 (49% off)

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Excellent and NOT sourced from China

Posted by Reviewer1287175 on Apr 22, 2016

It's not easy to find Vitamin C powder that isn't from China, but this it. Certified and much more likely to be free of contaminants.

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Posted by JesusLovesYou4Ever on Feb 18, 2016

Use 2 every day!

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Posted by 4725306416973104201 on Dec 30, 2015

I have tried other 500mg caps, but this one is a bit smaller! I have many caps to take everyday, so i prefer i smaller cap. It has help me to fight with Flu-A in mid-2015 and i recovered much better and faster than the other FLU-A patient who took Tamiflu!

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pretty good~

Posted by crisinKR on Jun 30, 2015

My stomach is very sensitive but this doesn't upset it. I take it in the morning on an empty stomach and eat withing 30 min of taking it. No visible effect yet but as long as there are no side effects to it I'm happy to keep taking it.

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doesn't upset stomach ; haven't seen any visible effects yet

Posted by 5024954584218209367 on Apr 14, 2015

PROS -Ascorbic Acid form which is the purest form of Vitamin C -non-China (Quali-C made from Scotland) -no additives, non-GMO -veggie caps -I can take 4 and it doesn't upset my stomach CONS -I found 1 EMPTY tablet inside! -no visible effects as of now, been taking 3-4 a day for almost 1 month

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Posted by 4636967956191510016 on Jul 17, 2014

very nice product

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Great vitC for a great price

Posted by jayzou on Dec 24, 2013

This product DOES NOT deserve the low ratings written by some of the other reviewers here. But read what they write and decide for yourself...I think you'll know what I'm talking about. This is a great quality vitamin C for a great competitive price by Doctor's Best. If you're so picky about your supplements, stick to high-end 'whole food' brands and quick nitpicking low cost quality brands like this.

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6 people found the following review helpful

It is a must

Posted by ShirleyDabbs on Apr 23, 2013

Since the multi-vitamin that I use only contains 500mg of Vitamin C, I take this Doctor's Best Vitamin C 500mg once or twice a day. With this, a bowel movement is guarantee everyday. And since I started it, I never have a cold. I also give this to my son. He didn't get sick even his school had a flu outbreak last year. Price is good. We will stay on this product because it is a must.

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1 person found the following review helpful

Indeed the best

Posted by alanng on Apr 13, 2013

I think of all the corn-derived vitamin C products out there, this is indeed the best, because it is extremely difficult to find one that doesn't use GMO corn. And this product really works - I remember feeling energized after taking one. The only reason why I didn't give it 5 stars is because it's still synthetic vitamin C after all. Nonetheless, I do recommend this product and will buy again when I feel the need to supplement. Alan Ng, Singapore

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3 people found the following review helpful


Posted by Reviewer2113651 on Mar 22, 2012

Good product and reasonable price and shipping.

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1 person found the following review helpful

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