Salt plus C - which C is best with no sugar in it

I'm starting Salt plus C for Morgellon's so it's important that I do not consume any sugar, as it feeds the Morgs. I always thought raw food/plant bases vitamins were best, but I am wondering now if the fruits in the raw vitamin C would be considered sugary? What vitamin C would be best? I am going to be taking almost 10,000 mg daily, so I want to minimize my spend, but if the quality of the C is worthless, it wont work. Does anyone know what C works best with Salt + C?

Thanks

Rose Tweet