I’m taking 500 mg of Liposomal Vitamin C once daily and 1,600 mg of L-Arginine twice daily. I take both on an empty stomach. I read that you should take the vitamin C first as it does something to aide with the processing of the L-Arginine. So far my results have been very good. I still have symptoms and if I do too much I still crash but I feel better and am able to do much more each day. I hope this helps!