Mix deodorant with soda, coconut and sage oil yourself
I mix my deodorant evenly with soda and coconut oil and put it in a small glass with a screw cap. If you like, you can add essential oils, for me it's sage oil. The soda is the active ingredient and the coconut oil is the skin-care part. You only need one pea-sized blob per armpit. This deodorant is the best one I've ever had.
Purchased deodorants cost too much, usually produce plastic waste and contain (too many) substances that do not look as good as advertised.
Another option is to fill an old deodorant with the paste to screw it up. To make it a little harder and so that it does not flow away in the summer due to the liquid coconut fat, mix beeswax and potato or corn starch.
Soda dissolved in water is suitable for an old deodorant with a round ball in the head. You can also fill the soda solution in an old glass spray dispenser, but then you have to shake up the solution again and again, so that the spray head does not become clogged.
