So when is the best time to take vitamin C? “In my opinion, there is no best time ... “For best absorption, aim for 500mg at a time," she says. "If you’re taking higher doses, consider ...

Metagenics Ultra Potent-C Vitamin C 500mg might be worth considering. We’ve been using Metagenics Ultra Potent-C Vitamin C 500mg for a few months now and have had a positive experience with it.