This one you posted would be very good. It has 0.50% permethrin which I use. Just remember you need to treat weekly for 3 or 4 weeks because it does not kill the pests eggs.
https://www.horsegearcanada.com/products/gh-power-shield
As for in Canada, I think you can get this. It's 0.35% permethrin. I realize it doesn't say on the label for mites and lice, but will work.
https://www.amazon.ca/PRO-PER-R-T-U...d=1620573027&sprefix=pyrethrin,aps,281&sr=8-3

https://www.horsegearcanada.com/products/gh-power-shield
As for in Canada, I think you can get this. It's 0.35% permethrin. I realize it doesn't say on the label for mites and lice, but will work.
https://www.amazon.ca/PRO-PER-R-T-U...d=1620573027&sprefix=pyrethrin,aps,281&sr=8-3

