I’ve upped my vitamin C to 2000mg per day. I hope that is good enough. I may have to stock up on more vitamins.
I get mine from Amazon in bulk. About 500 grams=a little more than one pound is close to $20.00 If you order more than $ 25.00 shipping is free. I usually get calcium ascorbate which is the buffered kind and besides C you also get calcium and it is easy on your stomach. Look it up at Amazon, some people also use it for their animals as it helps them as well. You will find lots of good commentary there. Stay healthy and well and have a great day.