I am currently vodka dosing. I have been doing it for a few months. Currently up to 8mls as I went a little quicker than recommended. I have seen a drop in my numbers but that is probably more to do with water changes than the vodka as they were quite high to begin with. I do have to clean my glass more when vodka dosing, but so far that is the only effect I have seen. I am hoping I will see more results soon. I dose twice a day, half in the am and half in the pm.