https://www.youtube.com/watch?v=gmqgGwT6bw0&feature=youtu.be
IIRC you live in AZ. IF you are south of about 32N lat, you can make your own D3 around noon for 30m or so now. It’s free.
https://www.esrl.noaa.gov/gmd/grad/solcalc/azel.html
‘Solar Elevation’ number needs to be above 50 to generate D3 via the sun.
Don’t burn. 15m each side, flip like bacon.
Check any meds you might be taking in case recommend not getting sun exposure.
D3 supplements in a bottle, like all our other vitamins and meds probably comes from China. So, won’t get more of those for a while once our domestic supply runs out.
Disclosure: I do this regularly and I ALSO visit my dermatologist once a year for a once over. I have never had skin cancer or been told to stay out of the sun. YMMV based on what underlying conditions you may have.