I use SG3 Deodorant and I buy it in 240 ml bottles at Shoppers Home Health Care. It is not cheap but it works 100% I also do not count drops but rather just put a squirt in the pouch. There is never any odor in my home or washroom ever. I go through a bottle a week on average so approx $1000.00 a year so you can see I am concerned about
the problem.
If you are looking for something inexpensive you can get Hydrogen peroxide 3% solution in 475 ml brown bottles for $1.00 in Dollerama stores.
I found it worked most but not all of the time for me so continue to use the SG3 at $18.00 a bottle and have been using it for 15 years..
Good luck. WaterMaster