Dr. Keith's Own Super C-High Dose Powdered Vitamin C 4000mg with D-Ribose, Glycine, MSM-Highly Absorbable, Stomach-Friendly, Collagen Boost, Immune Support-Unflavored, 200 Grams (30 Servings)

Excellent vitamin C powder. High strength with helpful additions. Tastes like Tang. No stomach upset.

Great vitamin C product with ingredients that boost it's effectiveness. Tastes great too!

I’ve tried capsules and powders and chewables. Nothing beats the convenience of Super C Powder. It easily dissolves in my morning juice without changing the flavor and provides a potent amount of high quality vitamin C, far more than the number of capsules one would have to swallow to get the same amount of benefit. Since we need around 8,000 mg a day, as compared to what is made by animals of similar weight, it is the quickest and most convenient way to maintain optimal amounts of C in the body..

I have been taking Dr. Keith's Own Super C for a while. I would order from Dr. Keith's Own when I could, but to be honest, it cost more and I had to pay for shipping. Lower price and no shipping is a big plus from Amazon. When I had my checkup, my doctors assistant asked what I do to not get sick - I said take extra Super C. She said fantastic, and my doctor said "Keep doing whatever you’re doing". I am 75+ and I'm not on any meds. Thank you Dr. Keith for formulating this wonderful product.

We purchase several items from Dr. Keith. I love his explanation of the benefits of the product. As far as the Vitamin C powder goes....the day I received my jar, I was starting to feel feverish. My husband mixed some of the powder up in a glass of water for me. I drank it .....really very very little taste. I didn't get sick. Felt fine the next day. I was thrilled.

I like the taste and no stomach ache

I have used Super C for years, long before it was on Amazon, I must say I appreciate the free shipping with my Prime membership. I understand people saying they don't like the taste, I feel it does have an odd flavor but I sprinkle a little stevia in it and feel it makes a big difference. I really try to only take high quality supplements and Super C is definitely an important part of my daily routine, thank you Dr. Keith!

Dr. Keith claims his brand has smaller molecules than others so is much more absorbable than others. I have no idea if this is true but i went for it “just in case”.