Retatrutide and Bac

Hoping somebody can save me some time. Got my Retatrutide and of course, forgot to order vial of bac water. Will driving around to CVS, Walgreens, etc, likely find in stock, or will have to order? And anything of note other than syringe in the bac water, mix, and done?

I think I had to order from Amazon last time.

Thank! Never would have thought that, and maybe the new world we live in, comes tomorrow before noon.

I just ordered them in combo from nextgenpeps tbh, they are quite cheap.