Doctors Best High Absorption Vitamin C with PureWay-C, Sustained Release for All Day Immune Support, Non-GMO, Gluten Free, Soy Free, Vegan 60 Tablets

Easy on the stomach, assimilates (or at least I think so), and seems to be the best one I've tried. Highly recommend.

This vitamin C is of super high quality, as are all Doctor's Best products. I was taking a lot of different things for my immune system, which were working; however, I would still get a cold or sinus infection at least twice a year during the winter and early spring. Since I have added this vitamin C product into my regimen (for the last 10 months or so), I have not gotten since ONCE. And that says something because my WHOLE office got sick multiple times and I was pregnant during 9 months of that time and therefore more susceptible. I now simply can't live without this amazing supplement.

Not all Doctor's best supplements are free from unsafe amounts of heavy metals (like the magnesium supplement) but the vitamin C tested clean. My source is Lead Safe Mama.

All in one immune system vitamins that are convenient and high potent

I ordered it, it was shipped, I got it.

Helps for sleep!

Finally found a formula that is time released because regular vitamin C flushes out within hours.

Easy to swallow, other than that not much to say it is a vitamin.