Hi Chaz, I haven’t tried Sanaxes as I hear it is not available in Colorado. But I have freezing cold feet from Neuropathy and what has really helped me has been wool felt shoe insoles from Amazon, Cozy Winters foot of the bed heating pad which is long and stays warm most of the night on a low setting and #1 Rock Dove Nomad slippers which are my go to when I’m indoors. I also use hot hands toe warmers in my shoes went outdoors along with the wool felt insoles. Maybe these will help you. Wishing you warm feet! Bcool