bone-jointformula question

Hi James, i'm just curious about the ingredient in your bone-joint formula: Vitamin C crystals

maybe i'm wrong, but, it is not the same as synthetic ascorbate acid?

i think there are some reasons for it's use

i'm just curious about it   cause you always say that vitamin C in most of natural forms (excpt camu camu) contain synergistic compounds that protect this antioxidant from oxidation.