Kirkman Buffered Unflavored Bio Max Series Hypoallergenic Antioxidant Casein and Gluten-Free Vitamin C Powder - 198.5g, 7oz

This is by far the best vitamin C powder available and I learned about it from my integrative medical doctor. I give it to my son (age 3, has Down Syndrome and tends to have a weaker immune system) to keep him healthy. It is January 2016 and he has not even had a snotty nose yet this winter season. We've even been exposed to the stomach bug/gastroenteritis MULTIPLE times from a variety of people and my entire family of 9 have not gotten sick! I give this powder to my other children often in smoothies, juice or water with a little stevia to sweeten it. THIS is the vitamin C to choose. You can control the amount of mg you want depending upon if you are in maintenance mode or sickness mode. I love that!

Best Vitamin C I have used, and I have tried many. It helped with chronic constipation with ease. It also helped with a chronic sinus infection which has not returned since I started using it. I just put a little bit in my tea everyday.

Me encanta la presentacion, muy fácil de mezclar con el agua. El sabor es un poco feo y la absorción espero sea buena, ya que no he podido medirla pero en general me gusta el producto por su facilidad de tomar.

I love this stuff! Taste is good even, just a tart flavor but much better then that fake flavor in other brands. Makes me feel good too. Unlike other brands I also don't get horrible heartburn from this.

I love this product, I like that I can just add a little to a lemonade and I won’t feel the taste. Also, it lasted a lot.